CAN COMMUNICATION SYSTEM (for RHD) FAIL-SAFE CHART


  1. FAIL-SAFE FUNCTION


    1. When communication fails in any of the main wires (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.

    2. The table below shows the effects on each system when communication is impossible. For further details, refer to each system.

      System Function Control Description

      1. Control Master

      2. System Related

      3. Control Actuator

      		 Fail-safe Function System Behavior Indicator and Buzzer Behavior or User Notification
      Airbag (ABG) TC DTC/output service When TC is on, DTCs (warning light turn on/ turn off request signals) are output.

      1. Center airbag sensor assembly

      2. ECM

      3. Combination meter assembly

      		 If the TC signal is lost during TC service (TC=ON), the TC is determined to be OFF and TC service ends. -
      Event recorder (EDR) Records the vehicle information during a crash (the vehicle speed, accelerator pedal opening angle, shift position, etc.).

      1. Center airbag sensor assembly

      2. ECM, Master cylinder solenoid (skid control ECU), Steering angle sensor, Yaw rate sensor assembly

      3. -

      		 An invalid value is stored in the EDR. -
      SRS warning light control Turns the SRS warning light on/off.

      1. Combination meter assembly

      2. Center airbag sensor assembly

      3. -

      		 - The SRS warning light turns on.
      Crash Detection Signal Reports a crash in order to perform a fuel cut, trigger the EDR, etc. during a crash.

      1. ECM

      2. Center airbag sensor assembly

      3. -

      		 - -
      Seat Belt Warning Light Control Sends passenger information in order to turn the seat belt warning light on and off.

      1. Main body ECU (cowl side junction block LH), Combination meter assembly

      2. Center airbag sensor assembly

      3. -

      		 - -
      Brake (VSC) Warning light control BRL, ABS, VSC-OFF, SLIP and CRAWL light control (turn on/off, blink, DTC output).

      1. Master cylinder solenoid (skid control ECU)

      2. -

      3. Combination meter assembly

      		 - -
      ABS control ABS control according to the G sensor signal.

      1. Master cylinder solenoid (skid control ECU)

      2. Yaw rate sensor assembly

      3. Master cylinder solenoid (skid control ECU)

      		 The ABS does not operate. VSC warning light illuminates.

      TRC control

      CRAWL control

      		 Brake control and engine torque control during acceleration slip.

      1. Master cylinder solenoid (skid control ECU)

      2. ECM, 4WD control ECU

      3. Master cylinder solenoid (skid control ECU)

      		 TRC does not operate. VSC warning light illuminates
      VSC control VSC control according to the yaw rate and steering angle sensor signal.

      1. Master cylinder solenoid (skid control ECU)

      2. ECM, 4WD control ECU, Steering angle sensor, Yaw rate sensor assembly, Steering control ECU

      3. Master cylinder solenoid (skid control ECU)

      		 VSC does not operate. ABS and VSC warning light illuminates.
      ACC control The brake control according to the request from the distance control ECU via the ECM.

      1. Master cylinder solenoid (skid control ECU)

      2. ECM

      3. Master cylinder solenoid (skid control ECU)

      		 ACC does not operate. ABS and VSC warning light illuminates.
      Dynamic Radar Cruise Control (ACC) ACC Acceleration/deceleration control when following the vehicle in front.

      1. -

      2. ECM

      3. ECM

      		 ACC control is canceled.

      • "Check Cruise System" is displayed on the multi-information display.

      • The master warning light turns on and the warning buzzer sounds.

      1. -

      2. Steering angle sensor

      3. -

      1. -

      2. Yaw rate sensor assembly

      3. -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. Master cylinder solenoid (skid control ECU)

      		 - -

      1. Distance control ECU assembly

      2. -

      3. -

      		 - -

      1. -

      2. Steering control ECU

      3. -

      		 - -

      1. -

      2. Combination meter assembly

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 - -
      Pre-crash Safety System (PCS) PCS Seat belt and brake control immediately before a crash.

      1. -

      2. ECM

      3. -

      		 PCS control stops.

      • "Check Cruise System" is displayed on the multi-information display.

      • The master warning light turns on and the warning buzzer sounds.

      1. -

      2. Steering angle sensor

      3. -

      1. -

      2. Yaw rate sensor assembly

      3. -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. Master cylinder solenoid (skid control ECU)

      1. Distance control ECU assembly

      2. -

      3. -

      1. -

      2. Steering control ECU

      3. -

      1. -

      2. -

      3. Seat belt control ECU

      		 PCS control stops. -
      Tilt and Telescopic (TAT) Auto Away/ Return Control Controls the auto away/ return operation and prohibits auto control using the IG signal, driver seat buckle switch signal, etc.

      1. Multiplex tilt and telescopic ECU

      2. Position control ECU and switch, Accessory bus buffer, Main body ECU (cowl side junction block LH), Combination meter assembly

      3. -

      		 Auto away/return control does not operate. -
      Auto away/return control does not operate and memorization and recall control does not operate. -
      Memorization/ Recall Control Controls the steering wheel position memorization and recall for the seat position memory.

      1. Multiplex tilt and telescopic ECU

      2. Position control ECU and switch

      3. -

      		 Memorization and recall control does not operate. -
      Mechanical 4WD (FWM) Switching control between High and Low Switching between High and Low is prohibited during the following conditions: 1) When there is a vehicle speed violation, engine speed violation, or large difference in wheel speeds, 2) when the shift lever is not in N, or 3) when the clutch is not on.

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      Switching between High and Low is prohibited.

      Tech Tips

      When there is a wheel speed malfunction, function No. 7 is controlled to determine if switching between High and Low can be performed.

      		 Center differential lock indicator light blinks (at 0.2 sec. intervals) or 4LO indicator light blinks (at 0.2 sec. intervals) or center differential lock and 4LO indicator lights blink (at 0.2 sec. intervals).
      Neutral switching control Switching to neutral is prohibited during the following conditions: 1) When there is a vehicle speed violation or engine speed violation, or 2) when the shift lever is not in N or the clutch is not on.

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      		 Switching to neutral is prohibited. 4LO indicator light blinks (at 0.2 sec. intervals) or center differential lock and 4LO indicator lights blink (at 0.2 sec. intervals).
      Center differential lock switching control (between Free and Lock) Center differential lock switching is prohibited when there is a vehicle speed violation or large difference in wheel speeds.

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      Center differential lock switching is prohibited.

      Tech Tips

      When there is a wheel speed malfunction, function No. 7 is controlled to determine if center differential lock switching can be performed.

      		 Center differential lock indicator light blinks (at 0.2 sec. intervals) or center differential lock and 4LO indicator lights blink (at 0.2 sec. intervals).
      Mechanical 4WD (FWM) Rear differential lock switching control (between Rr Free and Rr Lock) Rear differential lock switching is prohibited when there is a vehicle speed violation.

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      Rear differential lock switching is prohibited.

      Tech Tips

      When there is a wheel speed malfunction, function No. 7 is controlled to determine if rear differential lock switching can be performed.

      		 Center differential lock indicator light blinks (at 0.2 sec. intervals) or center differential lock and 4LO indicator lights blink (at 0.2 sec. intervals).
      L4F switching control Switching to L4F is prohibited and the operation is performed with L4L when VSC is malfunctioning.

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 L4F switching is prohibited and the operation is performed with L4L. No user notification.
      Specialized control when temperature is low Changes the ACT conductive current value according to the temperature (low temperature use or normal temperature use).

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. Air conditioning amplifier assembly, ECM

      3. -

      		 Changes the temperature used for the calculation of ACT temperature adjustment control. No user notification.
      Specialized control during wheel speed failure When there is a wheel speed failure, switching is permitted only when specified conditions are met (the wheel speed malfunction is 1 wheel or more and 3 wheels or less, the brake is applied, the engine speed is low, and all normal wheel speeds are low).

      1. 4WD control ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      		 If the wheel speed malfunction is 1 wheel or more and 3 wheels or less, only when the wheel speed failure specified conditions are met, switching is permitted. When 4 wheels are malfunctioning, switching is prohibited (the wheel speed failure specialized control does not operate). Center differential lock indicator light blinks (at 0.2 sec. intervals) or center differential lock and 4LO indicator lights blink (at 0.2 sec. intervals).
      Mechanical 4WD (FWM) Indicator and buzzer signal output Signal output of the indicator and buzzer condition that indicates the actuator position and switching status.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      High-Low actuator failure signal output When the High-Low actuator limit switch is malfunctioning, a signal is output.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      C/C cancel signal output Outputs a cruise control cancel signal when center differential switching is not completed even though 5 sec. or more have elapsed from the start of switching.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      L4 status signal condition output A signal is output when switching between the L4F and L4L position is completed.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      C/D lock condition signal output CDL switch condition is output.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      R/D lock condition signal output R switch condition is output.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      T/F N condition signal output NP switch condition is output.

      1. 4WD control ECU

      2. -

      3. -

      		 - -
      Gasoline Engine Engine control system Adjusts the fuel injection volume according to each sensor value and controls the engine.

      1. ECM

      2. -

      3. -

      		 - -
      ECT control system Changes the ECT shift position based on the vehicle speed and torque.

      1. ECM

      2. -

      3. -

      		 - -
      Cruise control system Maintains a constant vehicle speed and drives the vehicle.

      1. ECM

      2. -

      3. -

      		 - -
      Power Back Door (BKD) Power back door operation conditions Prohibits the power back door operation according to the vehicle state (the engine switch, shift position, vehicle speed, and lock position).

      1. Power back door unit assembly (power back door ECU)

      2. -

      3. Power back door unit assembly (power back door ECU)

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH), Combination meter assembly, ECM

      3. -

      		 The power back door system does not operate (when the start signal is received, the buzzer sounds a warning that the conditions are not met). -
      Power back door operation requests Receives the power back door close/open operation trigger from the operation switch or wireless switch and begins the power back door operation.

      1. Power back door unit assembly (power back door ECU)

      2. -

      3. Power back door unit assembly (power back door ECU)

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH), Certification ECU (smart key ECU assembly)

      3. -

      		 The power back door system does not operate.
      Power back door operation status output Sends the hazard illumination request when the power back door operation begins and back door unlock request.

      1. Power back door unit assembly (power back door ECU)

      2. Main body ECU (cowl side junction block LH)

      3. Power back door unit assembly (power back door ECU)

      		 When the back door operation begins, the hazard warning lights may not illuminate. -

      1. -

      2. -

      3. Main body ECU (cowl side junction block LH)

      		 - -
      DTC transmission/reception Performs the power back door customization, malfunction detection, Active Test, etc.

      1. Power back door unit assembly (power back door ECU)

      2. -

      3. Power back door unit assembly (power back door ECU)

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 DTC function does not operate. -
      Active Height Control Suspension (4-WHEEL AHC) Damping force control Detects the driving conditions, road conditions, etc. based on information from the ECM, master cylinder solenoid (skid control ECU), steering angle sensor, yaw rate sensor assembly and steering control ECU and changes the damping force of the shock absorbers.

      1. Suspension control ECU

      2. -

      3. Suspension control ECU

      		 - -

      1. -

      2. ECM

      3. -

      		 Uses the fail-safe constant and continues damping force control. Damping force control is prohibited. A warning is displayed.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 Damping force control is prohibited.

      1. -

      2. Steering angle sensor

      3. -

      1. -

      2. Yaw rate sensor assembly

      3. -

      1. -

      2. Steering control ECU

      3. -
      Spring switching control is prohibited Based on the information from the master cylinder solenoid (skid control ECU), steering control ECU, yaw rate sensor assembly and steering angle sensor, detects the driving conditions, road surface conditions, etc. and changes front spring constant value (ON/ OFF).

      1. Suspension control ECU

      2. -

      3. Suspension control ECU

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 Spring rate switching control is prohibited. "Check 4-WHEEL AHC System" illuminates.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Anti-roll spring rate switching control is prohibited.

      • Anti-dive spring rate switching control continues.

      		 A warning is displayed.

      1. -

      2. Steering angle sensor

      3. -

      1. -

      2. Steering control ECU

      3. -

      1. -

      2. Yaw rate sensor assembly

      3. -
      Active Height Control Suspension (4-WHEEL AHC) Vehicle height control Based on the information from the ECM, master cylinder solenoid (skid control ECU), steering control ECU, 4WD control ECU, main body ECU (cowl side junction block LH), yaw rate sensor assembly, steering angle sensor, detects the driving conditions, road surface conditions, etc. and restricts vehicle height changes.

      1. Suspension control ECU

      2. -

      3. Suspension control ECU

      		 - -

      1. -

      2. Combination meter assembly

      3. -

      		 - A warning is displayed.

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The vehicle returns to vehicle height "N" and vehicle height control is prohibited.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      1. -

      2. Steering angle sensor

      3. -

      1. -

      2. Steering control ECU

      3. -

      1. -

      2. Yaw rate sensor assembly

      3. -
      Air Conditioner (ACN) Air conditioning system

      • Air conditioning vent temperature control according to the engine coolant temperature information.

      • Air conditioning vent switching control according to the engine coolant temperature information.

      • Air conditioning vent airflow amount control according to the engine coolant temperature information.

      • Compensation of the engine coolant temperature information according to the engine type.

      • Compressor lock judgment value switching according to the engine type.

      1. Air conditioning amplifier assembly

      2. ECM

      3. -

      Coolant information: Control is performed by using the default value (80°C [176°F]).

      Engine type: The condition is maintained (when unconfirmed, control is performed by using the default [507°F]).

      		 -
      Compressor lock judgment by NE.

      1. Air conditioning amplifier assembly

      2. ECM

      3. -

      		 NE: Control is performed by using the default value (0 km/h [0 mph]) -
      Air Conditioner (ACN) Air conditioning system The electric load control condition is limited according to the load control level.

      1. Air conditioning amplifier assembly

      2. ECM

      3. -

      		 Load control: No load control (normal control). -

      • Activation control according to the viscous heater activation permission information.

      • Activation control according to the PTC heater activation permission information.

      1. Air conditioning amplifier assembly

      2. ECM

      3. -

      		 Permission information: Control is performed according to the operation prohibition state. -

      • Air conditioning system operation status control and panel switch IND output control according to panel switch operation information.

      • Exhaust gas automatic air presence judgment and circulation control switching according to exhaust gas automatic air presence information.

      1. Air conditioning amplifier assembly

      2. Multi-media module receiver assembly

      3. -

      		 None (Air conditioning system operation condition switching is not possible). -
      Dimmer information output to the LIN panel according to the display dimmer information.

      1. Air conditioning amplifier assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Condition is maintained (after the reset, the dimmer condition is fixed). -
      PTC control switching based on the headlight illumination information.

      1. Air conditioning amplifier assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 PTC control (the headlight flickering countermeasure) is not performed. -
      A/C control pattern switching based on the country specific information.

      1. Air conditioning amplifier assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Condition is maintained (when unconfirmed, control is performed according to the default value). -
      Air conditioning system operation condition switching and the outside temperature display output adjustment according to the vehicle speed information.

      1. Air conditioning amplifier assembly

      2. Combination meter assembly

      3. -

      • Decrease in reliability and consistency of the exterior temperature value of the outside temperature display.

      • Decrease in the optimum level of A/C vent airflow amount adjustment.

      		 -
      Steering Sensor (STR) Steering angle detection function The steering angle change information is output to the CAN according to the steering wheel operation.

      1. Steering angle sensor

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Initialization condition: Data output response request (STS=0).

      • When the trigger frame VSC 1S01 is not received from the master cylinder solenoid (skid control ECU), the data output response of the output response request changes from STS=0 to STS=1.

      		 -

      • Communication is stopped after transmission is sent 4 times at 12 msec. intervals as the data output response non-request STS=0.

      • When the above conditions are met, the sensor internal zero point memory invalid SAZS=1 and SFRZ=previous value + 1 during the next transmission.

      		 -
      - Depends on the partner ECU specification.
      Seat (DST) Memorization and recall function Memorizes and recalls the seat position.

      1. Position control ECU and switch

      2. -

      3. Position control ECU and switch

      		 - -

      1. -

      2. ECM

      3. -

      		 The memorization and recall functions do not operate. -

      1. -

      2. ECM

      3. -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      1. -

      2. Outer mirror control ECU assembly

      3. -
      Memory Call Function Acquires card key information from the certification ECU and performs automatic recall.

      1. Position control ECU and switch

      2. -

      3. Position control ECU and switch

      		 - -

      1. -

      2. Certification ECU (smart key ECU assembly)

      3. -

      		 The memory call function does not operate. -
      Tilt and Telescopic Operation Permission Function Receives the recall execution signal from the tilt and telescopic system and sends a recall permission signal to the tilt and telescopic system.

      1. Position control ECU and switch

      2. -

      3. -

      		 - -

      1. -

      2. Multiplex tilt and telescopic ECU

      3. Multiplex tilt and telescopic ECU

      		 The tilt and telescopic system does not operate. -
      Away/Return Function Moves the seat to the proper position for entering and exiting the vehicle.

      1. Position control ECU and switch

      2. -

      3. Position control ECU and switch

      		 - -

      1. -

      2. ECM

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The away function does not operate. -

      1. -

      2. Combination meter assembly

      3. -

      		 The away and return functions do not operate. -
      Mirror (DRD) Mirror surface manual control Function that adjusts the mirror surface with the manual switch.

      1. Outer mirror control ECU assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The mirror surface manual adjustment function does not operate (stops if there is a disruption during the operation). -
      Mirror surface memory control Function that records the mirror surface position.

      1. Outer mirror control ECU assembly

      2. Position control ECU and switch, Main body ECU (cowl side junction block LH)

      3. -

      		 The mirror surface recording function does not operate -
      Mirror surface recovery control Function that moves the mirror surface to the recorded mirror surface position.

      1. Outer mirror control ECU assembly

      2. Position control ECU and switch

      3. -

      		 The mirror surface recovery function does not operate (if disrupted during the operation, the function does not operate from the next trigger condition). -
      Mirror surface reverse control Function that tilts the mirror surface downward when the vehicle is moving in reverse.

      1. Outer mirror control ECU assembly

      2. Main body ECU (cowl side junction block LH), ECM

      3. -

      		 The reverse shift-linked function does not operate (if disrupted during the operation, the function does not operate from the next trigger condition). -
      Electric retract/return control Function that retracts/returns the mirror housing.

      1. Outer mirror control ECU assembly

      2. Main body ECU (cowl side junction block LH), ECM

      3. -

      		 The mirror housing retract/return function does not operate (if disrupted during the operation, the function does not operate from the next trigger condition). -
      Foot light illumination control Function that turns on/off the foot light illumination that is on the bottom of the mirror housing.

      1. Outer mirror control ECU assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The foot light illumination turns off (if illuminated, turns off). -
      Wiper (FRN) Front wiper control System that operates the wiper HI and LO operation, vehicle speed sensing intermittent wiper function, vehicle speed switching function, washer linked function, and auto wiper.

      1. Windshield wiper ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      		 With the engine switch on (IG) and the wipers operating with the LO switch on, the intermittent wiper function does not operate while the vehicle is stopped due to the vehicle speed switching control not operating. -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      1. -

      2. Combination meter assembly

      3. -

      • With the engine switch on (IG) and the wipers operating with the LO switch on, the intermittent wiper function does not operate while the vehicle is stopped due to the vehicle speed switching control not operating.

      • With the engine switch on (IG), the washer fluid delay timing becomes fixed.

      • With the engine switch on (IG), the intervals do not change according to the vehicle speed while the intermittent wiper function is operating.

      		 -
      LIN communication control System that assists the outer wiper function by communication with the windshield wiper ECU.

      1. Windshield wiper ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 With the engine switch on (IG), the disruption value data is routed to the rain sensor. Otherwise, the rain sensor operation depends on the specifications. -

      1. -

      2. Combination meter assembly

      3. -
      Navigation (EMVN) Air Conditioning Control Controls the selecting of the registers, temperature adjustment, etc. according to the operation of the touch panel switches on the display.

      1. Multi-media module receiver assembly

      2. Air conditioning amplifier assembly

      3. Air conditioning amplifier assembly

      • Turns off any indicators related to the air conditioning system.

      • If the set air temperature is displayed on an external display device, the system clears the set air temperature display.

      • Disables the functions used to operate the air conditioning system.

      		 The "Climate control system error. Please contact your dealer." screen appears.
      Clearance Sonar Settings/ Notification Controls the settings for the clearance sonar screen notifications which are set by operating the touch switches of the multi-display, displays the sonar status and plays voice warnings.

      1. Multi-media module receiver assembly

      2. ECM, Parking assist ECU

      3. Parking assist ECU

      • If communication stop occurs while clearance sonar settings screen is displayed, settings screen is cleared.

      • If a communication stop occurs while the clearance sonar sensor screen is displayed, the sensor screen is cleared.

      		 The "LEXUS Park Assist" icon which is displayed on the vehicle settings screen is cleared.
      Navigation (EMVN) Eco Navigation Display Displays the average fuel consumption history and a graph indicating the fuel consumption in 1 minute intervals.

      1. Multi-media module receiver assembly

      2. Combination meter assembly, ECM, Master cylinder solenoid (skid control ECU)

      3. -

      		 The fuel consumption per minute display update on the eco navigation screen (fuel consumption per minute screen) stops.

      • The 1 minute fuel consumption graph on the eco navigation (eco drive) screen is not updated for 1 minute or more.

      • The most recent value for the fuel consumption graph on the eco navigation (eco drive) screen is cleared.

      • The numbers of the distance to empty displayed on the fuel consumption screen of the eco navigation (eco drive) display are cleared.

      • Stops updating the average fuel consumption history on the eco navigation (eco drive display).

      • If the distance to empty is displayed on the eco navigation (eco drive display), the numbers of the display indicating the distance to empty are cleared because the distance to empty data is lost.

      		 -
      Navigation (EMVN) Rear View Monitor Control Displays the rear view monitor based on information from the steering sensor, the vehicle speed, and the vehicle information (2WD/4WD determination information and VGRS information).

      1. Multi-media module receiver assembly

      2. Main body ECU (cowl side junction block LH), ECM, Steering angle sensor, Steering control ECU

      3. -

      		 -

      • If a communication stop occurs when the expected course lines are being displayed, the expected course lines are cleared and "Guidance unavailable" is displayed on the bottom of the screen.

      • If a communication stop occurs when the display is in parallel parking guide mode, "Guidance unavailable" is displayed on the bottom of the screen.
      Destination Determination Determines the destination based on the destination signal and destination package information and selects the display language, time zone, etc.

      1. Multi-media module receiver assembly

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Determines the destination by maintaining the state before the communication stop. The time zone and language selection screens do not match the destination.
      Vehicle Event Recorder Continuously records the status information from the control ECUs and sensor information to the HDD in the EMV (AVN).

      1. Multi-media module receiver assembly

      2. Combination meter assembly, ECM, Master cylinder solenoid (skid control ECU), Steering control ECU, Suspension control ECU

      3. -

      		 Records the last received value to the HDD every 5000 milliseconds. -
      Vehicle Customize Function Changes the behavior and control parameters of various functions (illumination lighting time, etc.) according to the user operation via the screen.

      1. Multi-media module receiver assembly

      2. Position control ECU and switch, Certification ECU (smart key ECU assembly), Main body ECU (cowl side junction block LH), Air conditioning amplifier assembly

      3. -

      • When a phase 4 remote communication usage application is performed (customize or remote diagnosis), the information is processed regardless of whether the BDB ECU has permitted or prohibited remote communication.

      • 3 retries (including the first time) are performed.

      		 The related customization items for each ECU are not displayed or the set values cannot be changed.
      No. 2 main body ECU (RRJ) Rear wiper control System that performs the rear wiper LO speed operation, washer linked function, intermittent wiper function, vehicle speed switching control, and reverse linked control.

      1. No. 2 main body ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 With the engine switch on (IG), the rear wiper does not stop due to the rear upper door opening during the rear wiper operation. -

      1. -

      2. Combination meter assembly

      3. -

      		 With the engine switch on (IG), the intermittent wiper function does not operate while the wipers are stopped due to the vehicle speed switching control not operating during the rear wiper operation. -

      1. -

      2. ECM

      3. -

      		 With the engine switch on (IG), the rear wiper does not activate due to the reverse operation control not operating when the front wiper is operating. -

      1. -

      2. Windshield wiper ECU

      3. -
      Lower door closer control System that independently controls the internal closer motors (RH, LH) of the rear lower door at the same time.

      1. No. 2 main body ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Does not activate release, and does not release the lower door latch. -

      1. -

      2. Combination meter assembly

      3. -

      		 With the engine switch on (IG), does not activate release, and does not release the lower door latch. -
      Illumination control System that fades the inside handle illumination, and step illumination in and out.

      1. No. 2 main body ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Does not turn on the inside handle illumination or step illumination. -
      No. 2 main body ECU (RRJ) LIN communication control System that routes the CAN data to the overhead module using LIN communication.

      1. No. 2 main body ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Routes the disrupted value data to the overhead module. -

      1. -

      2. Certification ECU (smart key ECU assembly)

      3. -
      Variable Gear Ratio Steering (VGR) VGRS system System that changes the steering gear ratio based on the vehicle speed information and steering angle.

      1. Steering control ECU

      2. -

      3. Steering control ECU

      		 - -

      1. -

      2. Steering angle sensor

      3. -

      		 VGRS system does not operate. Master warning light illuminates and display is shown on multi-information display (meter display).

      1. -

      2. ECM

      3. -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -
      Clearance Sonar (CSR) LEXUS parking assist-sensor system System that activates the ultrasonic sensor, measures the distance from obstacles, and notifies the user by using the display and buzzer.

      1. Parking assist ECU

      2. -

      3. -

      		 - -

      1. -

      2. Air conditioning amplifier assembly

      3. -

      The sonar system functions normally.

      Maintains distance by maintaining the outside temperature at 25°C (77°F).

      		 -

      1. -

      2. Windshield wiper ECU

      3. -

      The sonar system functions normally.

      Operates the obstacle judgments with the wiper off (except in rain).

      		 -

      1. -

      2. ECU

      3. -

      		 If data received from the ECM is lost, the system is inoperable as control is performed with the shift position data set to P. -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The clearance sonar main switch indicator is maintained with the brightness as the previous value. -

      The sonar system functions normally.

      Control is maintained with the country specification information as the previous value (with or without a warning sound).

      		 -

      1. -

      2. Combination meter assembly

      3. -

      		 If data received from the meter ECU is lost, the system is inoperable as the clearance sonar is controlled at 20 km/h (12.5 mph) or more. -

      1. -

      2. Multi-media module receiver assembly

      3. -

      The sonar system functions normally.

      The clearance sonar customize information is maintained.

      		 -

      The sonar system functions normally.

      Information on the camera presence is maintained.

      		 -

      The sonar system functions normally.

      Notification on the screen that the clearance sonar is off is disabled.

      		 -
      AFS Leveling System that adjusts the beam axis direction of the headlights vertically according to the pitch angle requested by the wheel speed sensor and vehicle height sensor.

      1. Headlight swivel ECU assembly (AFS ECU)

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      • Leveling control continues.

      • Swivel control centers the headlights.

      		 AFS OFF indicator blinks.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Leveling control continues with the vehicle speed set to 0 km/h (0 mph).

      • Swivel control centers the headlights.

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      • Leveling control continues.

      • Swivel control centers the headlights.

      1. -

      2. Steering control ECU

      3. -

      		 - -
      AFS Swivel System that measures the turning diameter based on the wheel speed and steering angle, and then moves the headlights left and right according to the turning diameter.

      1. Headlight swivel ECU assembly (AFS ECU)

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      • Leveling control continues.

      • Swivel control centers the headlights.

      		 AFS OFF indicator blinks.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Leveling control continues with the vehicle speed set to 0.

      • Swivel control centers the headlights.

      1. -

      2. Steering angle sensor, Steering control ECU

      3. -

      • Leveling control continues.

      • Swivel control centers the headlights.

      1. -

      2. Steering angle sensor

      3. -

      • Leveling control continues.

      • Swivel control centers the headlights.

      1. -

      2. Main Body ECU (Cowl Side Junction Black LH) (V Bus).

      3. -

      • Level control continues.

      • Swivel control centers the headlights.
      AFS indicator Monitors for AFS system malfunctions and blinks the indicator of the meter when a malfunction is detected.

      1. Headlight swivel ECU assembly (AFS ECU)

      2. -

      3. Headlight swivel ECU assembly (AFS ECU)

      		 - -

      1. -

      2. Combination meter assembly

      3. -

      		 - -
      Back Guide Monitor BGM (Rear View Monitor) Automatically displays the rear view camera image and guidelines when conditions to display the rear view monitor are met, such as having the shift lever in R, etc.

      1. Parking assist ECU

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The guidelines cannot be adjusted. -

      1. -

      2. ECM

      3. -

      		 The screen does not change to the camera screen even when the shift lever is moved to R. -

      1. -

      2. Steering angle sensor, Steering control ECU

      3. -

      		 - On the bottom of the screen, "Guidance unavailable" is displayed, and the change display mode switch is not displayed.
      WAS (Front and Side Monitor) Automatically or manually displays the front camera image, passenger side camera image and guidelines when conditions to display the front and side monitor are met, such as having a certain vehicle speed and shift position, and according to switch operation, etc.

      1. Parking assist ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      • The automatic display function does not operate.

      • The screen does not change to the camera screen even when the main switch is pushed.

      		 -

      1. -

      2. Steering angle sensor, Steering control ECU

      3. -

      		 - On the bottom of the screen, "Guidance unavailable" is displayed, and the change display mode switch is not displayed.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Automatic display mode does not operate.

      • The screen does not change to the camera screen even when the main switch is pushed.

      		 -
      Back Guide Monitor MTM (Multi-terrain Monitor) Automatically or manually displays the front camera image, passenger and driver side camera image and guidelines when conditions to display the multi-terrain monitor, such as having a certain vehicle speed and shift position, and according to switch operation, etc.

      1. Parking assist ECU

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      • The automatic display function does not operate.

      • The screen does not change to the camera screen even when the main switch is pushed.

      		 -

      1. -

      2. Steering angle sensor, Steering control ECU

      3. -

      		 - On the bottom of the screen, "Guidance unavailable" is displayed, and the change display mode switch is not displayed.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Automatic display mode does not operate.

      • The screen does not change to the camera screen even when the main switch is pushed.

      		 -

      1. -

      2. 4WD control ECU

      3. -

      • The front single screen cannot be displayed when the transfer is in L4.

      • When the fail-safe is operating, the screen is fixed at the screen for H4.

      		 -
      Pre-crash Seat Belt (PSB) PCS (Operation Conditions 1) When the VSC system suddenly brakes and/or the vehicle is unable to be controlled (while spinning or drifting), the seat belt control ECU operates the pre-crash seat belts (PSB) that are fastened (receives the buckle switch information from the Center airbag sensor assembly) by tightening the seat belts to increase the occupant restraint.

      1. Seat belt control ECU

      2. -

      3. Seat belt control ECU

      		 -

      • "Check PCS System" is displayed on the multi-information display.

      • The master warning light turns on and the warning buzzer sounds.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 The PSB ECU detects a communication failure. Control stops. However, control continues until the end if the communication failure occurs during control.

      1. -

      2. Center airbag sensor assembly

      3. -

      		 The PSB ECU detects a communication failure. Control stops. However, control continues until the end if the communication failure occurs during control.
      PCS (Operation Conditions 2) When ACC determines that a crash is unavoidable based on the information from the millimeter wave radar sensor, the seat belt control ECU operates the pre-crash seat belts (PSB) that are fastened by tightening the seat belts to increase the occupant restraint.

      1. Seat belt control ECU

      2. -

      3. Seat belt control ECU

      		 -

      1. -

      2. Distance control ECU assembly

      3. -

      		 The PCS system does not operate. However, seat belt operation during sudden braking is an exception.

      1. -

      2. Center airbag sensor assembly

      3. -

      		 The PSB ECU detects a communication failure. Control is prohibited.
      Meter (MET) Speedometer Indicates the vehicle speed according to the vehicle speed signal.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 The speedometer indicates 0 km/h (0 mph). -
      Tachometer Indicates the engine speed according to the engine speed signal.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. ECM

      3. -

      		 The tachometer indicates 0 rpm. -
      ODO/TRIP meter Calculates and displays the driven distance according to the vehicle speed pulse signal calculated value.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • The ODO/TRIP meter stops calculating and the last displayed value continues to be displayed.

      • Optitron meter: In multi-display.

      • Regular analog meter: Independent LCD.

      		 -
      Engine coolant temperature gauge Indicates the coolant temperature according to the engine coolant temperature signal.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. ECM

      3. -

      		 The coolant temperature gauge displays less than the C mark. -
      Meter (MET) Fuel gauge Indicates the remaining fuel according to the fuel sender (direct line) input (uses the CAN communication (the vehicle speed signal) to determine if the vehicle is being driven or not).

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 Control is performed with the speed input as 0 km/h (0 mph). -
      Oil pressure gauge Indicates the engine oil pressure according to the oil pressure sender (direct line) input (uses the CAN communication to determine if the engine is on or off by the engine speed signal).

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. ECM

      3. -

      		 The oil pressure gauge displays less than the L mark. -
      Shift lever indicator The shift information is displayed according to the shift position signal.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. ECM

      3. -

      		 The shift lever indicator and shift position in the multi-information display turns off. -
      Meter (MET) Buzzer Controls the buzzer to sound and not sound according to the various signals that are input.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH), Master cylinder solenoid (skid control ECU)

      3. -

      Conditions for the seat belt buzzer not sounding:


      • Conditions for the seat belt buzzer not sounding:


        • When VSC1S03 is lost: Does not sound.

        • When BDB1S01 is lost: Does not sound.

        • When ECT1S90 is lost: Control is performed with B_R=0b.

        • When ECT1S95 is lost: Control is performed with B_CPKB=0b.

      		 -

      • Conditions for the seat belt buzzer sounding:


        • When VSC1S03 is lost: Control is performed with the vehicle speed as 0 km/h (0 mph).

        • When VSC1S95 is lost: Control is performed with B_CPKB=0b.

        • When BDB1S01 is lost: Control is performed with PKB_BDB=0b.

      		 -
      The door ajar driving warning buzzer does not sound. -
      Meter (MET) Buzzer Controls the buzzer to sound and not sound according to the various signals that are input.

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The light reminder buzzer does not sound. -
      The sliding roof buzzer condition is maintained (until bus sleep). -

      1. -

      2. ECM

      3. -

      		 The A/T reverse buzzer does not sound. -

      • The sports shift reject buzzer condition is maintained.

      • The radar cruise low speed cancel buzzer does not sound.

      • The radar cruise warning buzzer does not sound.

      		 -

      1. -

      2. 4WD control ECU

      3. -

      		 The last state of the 4WD buzzer is maintained. -

      1. -

      2. Certification ECU (smart key ECU assembly)

      3. -

      		 The door control transmitter buzzer (single push, continuous push, and intermittent push) does not sound. The immobiliser verification completion notification buzzer does not sound. -
      Meter (MET) Telltale Turns on/blinks/turns off indicators based on the various signals.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 ABS warning indicator turns on. ABS warning indicator turns on.

      1. -

      2. Main body ECU (cowl side junction block LH), Master cylinder solenoid (skid control ECU)

      3. -

      • Brake warning light


        • When VSC1S95 is lost: Illuminates.

        • When BDB1S01 is lost: Control is performed with PKB_BDB=0b.

      		 -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • SLIP indicator light condition is maintained.

      • VSC OFF indicator light condition is maintained.

      • The downhill assist control indicator condition is maintained.

      • The slight low speed TRC indicator condition is maintained.

      • The condition of the multi-terrain select indicator is maintained.

      • The condition of the turn assist indicator is maintained.

      		 -
      120 km/h (75 mph) speed warning turns off (for Middle East). -

      Control is performed with the speed condition as 0 km/h (0 mph) for the following display: FUEL FILTER clog indicator.

      ODO calculation stops for the following display conditions: Oil maintenance display.

      		 -
      Meter (MET) Telltale Turns on/blinks/turns off indicators based on the various signals.

      1. -

      2. Headlight swivel ECU assembly (AFS ECU)

      3. -

      • Maintains the AFS OFF indicator light condition.

      • Maintains the Headlight beam level control system warning light condition.

      		 -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      When there is determined to be a disruption, the following indicators operate as follows:

      While the engine switch is on (IG): Condition is maintained.

      When the engine switch is off: Turns off.


      • DOOR indicator light

      • Driver side seat belt warning light

      		 -

      When there is determined to be a disruption, the following indicators operate as follows:

      While the engine switch is on (IG): Condition is maintained.

      When the engine switch is off: Turns off.


      • FRONT FOG indicator light

      • REAR FOG indicator light

      • TAIL indicator light

      • HEAD indicator light

      • BEAM indicator light

      		 -
      Automatic high beam. -
      Meter (MET) Telltale Turns on/blinks/turns off indicators based on the various signals.

      1. -

      2. Parking assist ECU

      3. -

      		 The clearance sonar indicator turns off. -

      1. -

      2. ECM

      3. -

      • The A/T P warning light condition is maintained.

      • The ECT PW indicator light condition is maintained.

      • The 2nd START indicator light condition is maintained.

      • The cruise control indicator condition is maintained.

      • The SET indicator condition is maintained.

      • The radar cruise control indicator condition is maintained.

      		 -

      1. -

      2. ECM, 4WD control ECU

      3. -

      		 The A/T P warning light conditions are maintained. -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      		 The eco drive indicator light is turned off. -

      1. -

      2. 4WD control ECU

      3. -

      • The center differential lock indicator light turns off.

      • The 4LO indicator light turns off.

      		 -

      1. -

      2. Seat belt control ECU

      3. -

      		 The PCS indicator light condition is maintained. -

      1. -

      2. Suspension control ECU

      3. -

      ACCESS MODE indicator light


      • When the engine switch is on (IG): The condition is maintained.

      • When the engine switch is off: Turns off.

      		 -

      1. -

      2. Center airbag sensor assembly

      3. -

      		 The SRS warning light turns on. The SRS warning light turns on.
      Meter (MET) Multi-display Displays information about the drive monitor, tire pressure, warning, radar cruise, clearance sonar, door, A/T shift position, odometer, etc. based on the various signals.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      • Drive monitor calculations stop and the display is blank.

      • The current fuel consumption, average fuel consumption after refilling, distance to empty and average vehicle speed.

      		 -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      		 The digital speedometer displays 0 km/h (0 mph). -

      1. -

      2. ECM, Master cylinder solenoid (skid control ECU)

      3. -

      		 The eco drive indicator zone display is turned off. -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • Parking brake drag warning display conditions:


        • When VSC1S03 is lost: Control is performed with the vehicle speed as 0 km/h (0 mph).

        • When VSC1S95 is lost: Control is performed with B_CPKB=0b.

        • When BDB1S01 is lost: Control is performed with PKB_BDB=0b.

      		 -

      1. -

      2. Main body ECU (cowl side junction block LH), Master cylinder solenoid (skid control ECU)

      3. -

      • The CRAWL system display is maintained.

      • The VSC display is maintained.

      		 -

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      • The condition of the multi-terrain select indicator is maintained.

      • The condition of the turn assist indicator is maintained.

      		 -
      Meter (MET) Multi-display Displays information about the drive monitor, tire pressure, warning, clearance sonar, door, A/T shift position, odometer, etc. based on the various signals.

      1. -

      2. Master cylinder solenoid (skid control ECU)

      3. -

      Control is performed with the speed condition as 0 km/h (0 mph) for the following displays: Door open while driving display, FUEL FILTER clog display.

      ODO calculation stops for the following display conditions: Oil maintenance display, T-BELT display.

      		 -

      1. -

      2. Main body ECU (cowl side junction block LH), Master cylinder solenoid (skid control ECU)

      3. -

      • Conditions for the door open display and door open while driving display:


        • VSC1S03: Control is performed with the vehicle speed as 0 km/h (0 mph).

        • BSB1S01: Display state is maintained.

        • BDB1S08: No display.

      		 -

      1. -

      2. Air conditioning amplifier assembly

      3. -

      		 The outside temperature display is "E". The outside temperature display is "E" (in the meter).
      Meter (MET) Multi-display Displays information about the drive monitor, tire pressure, warning, clearance sonar, door, A/T shift position, odometer, etc. based on the various signals.

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 The shift position display turns off. -

      • The door control transmitter display condition is as follows:


        • While the engine switch is on (IG): Condition is maintained.

        • The door control transmitter display condition is as follows:

      		 -

      • The sliding roof open display condition is as follows:


        • While the engine switch is on (IG): Condition is maintained.

        • When the engine switch is off: Turns off.
      The condition of the automatic high beam display is maintained. -

      1. -

      2. Parking assist ECU

      3. -

      		 The clearance warning sonar display condition is maintained. -
      Meter (MET) Multi-display Displays information about the drive monitor, tire pressure, warning, clearance sonar, door, A/T shift position, odometer, etc. based on the various signals.

      1. -

      2. ECM

      3. -

      		 The A/T shift position display turns off. -

      • The A/T OIL TEMP display state is maintained.


        • When ECT1S92 is lost: Condition is maintained.

        • When ENG1S03 is lost: Controlled as ENG-OFF.

      		 -

      1. -

      2. Seat belt control ECU

      3. -

      		 The PCS display condition is maintained. -

      1. -

      2. Certification ECU (smart key ECU assembly)

      3. -

      • The door control transmitter display condition is maintained.

      • The security display condition is maintained.

      • The door control transmitter unlock mode display condition is maintained.

      		 -

      1. -

      2. Suspension control ECU

      3. -

      4-WHEEL AHC vehicle height display turns off.

      "Check 4-WHEEL AHC System" is displayed.

      4-WHEEL AHC vehicle height display turns off.

      "Check 4-WHEEL AHC System" is displayed.

      1. -

      2. Multi-media module receiver assembly

      3. -

      		 Arrow navigation is displayed. -

      1. -

      2. Steering angle sensor, Steering control ECU

      3. -

      		 The steering angle display is turned off. -

      1. -

      2. Steering control ECU

      3. -

      		 "Check VGRS System" is displayed. "Check VGRS System" is displayed.
      Meter (MET) Illumination function Controls dimming and meter illumination on/off according to the CAN signals.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 Daytime brightness. -

      1. -

      2. ECM

      3. -

      		 - -
      Passenger seat belt warning indicator Blinks the passenger seat belt warning indicator according to the CAN signals.

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - -

      1. -

      2. Center airbag sensor assembly

      3. -

      		 The passenger seat belt warning indicator condition is maintained. -

      1. -

      2. -

      3. Multi-media module receiver assembly

      		 - -
      Body (BDB) Power supply switching control The system that switches the power supply between +B, ACC, and IG.

      1. Main body ECU (cowl side junction block LH)

      2. Combination meter assembly, ECM

      3. -

      		 The forced engine switch off function does not operate. -

      When the power supply switching conditions are met, power supply switching control is permitted.

      When the power supply condition IG2 start/stop switch turns from off to on, the power supply condition is changed to IG1, and the IG relay output stops.

      		 -
      Body (BDB) Security The system that operates the warning when a theft is detected.

      1. Main body ECU (cowl side junction block LH)

      2. Certification ECU (smart key ECU assembly)

      3. Main body ECU (cowl side junction block LH)

      The security control does not operate

      (The headlight/taillight warning light output, horn warning output, and hazard warning light output do not operate).

      The forced door lock function lock output does not operate.

      The dome light warning control does not operate.

      The lighting system answer back control does not operate.

      (The taillight warning output and hazard warning light output do not operate).

      		 -
      When the security warning is operating, warning output stops during hazard warning light output. -
      When the security warning is operating, the dome light turns off during dome light illumination. -
      Entry and Start/Wireless

      The system that operates the lock/unlock, engine switch, back door opener, warning, etc. by pressing the switch when the door control transmitter is within the vehicle detection area.

      The system that operates the vehicle lock/unlock, panic, back door opener, etc. by remote control.

      1. Main body ECU (cowl side junction block LH)

      2. Certification ECU (smart key ECU assembly)

      3. Main body ECU (cowl side junction block LH)

      Entry and start/wireless control does not operate.

      The door lock/unlock control and entry back door opener control do not operate.

      		 -
      Body (BDB) Vehicle speed linked auto lock The system that locks the doors when the vehicle speed is 26 km/h (16 mph) or more.

      1. Main body ECU (cowl side junction block LH)

      2. Combination meter assembly, ECM

      3. Main body ECU (cowl side junction block LH)

      		 When the vehicle speed linked auto lock signal is lost, operation is permitted. -
      The vehicle speed linked auto lock does not operate. -
      Shift linked auto lock/unlock The system that unlocks all the doors when the shift lever is moved to P, and locks all doors when the shift lever is moved from P to another position while the engine is running.

      1. Main body ECU (cowl side junction block LH)

      2. Combination meter assembly, ECM

      3. Main body ECU (cowl side junction block LH)

      		 The shift linked auto lock/unlock function does not operate. -
      When the shift linked auto lock/unlock signal is lost, operation is permitted. -
      DRL The system that illuminates lights when driving the vehicle to improve the visibility of pedestrians and other vehicles in the daytime.

      1. Main body ECU (cowl side junction block LH)

      2. ECM

      3. Main body ECU (cowl side junction block LH)

      DRL control does not operate.

      Tech Tips

      If operated once, the operation continues until the engine switch is turned off, even if the signal is lost.

      		 -
      Boarding System that controls the front (rear) dome light, door mirror foot light, center console spot light, and interior foot light.

      1. Main body ECU (cowl side junction block LH)

      2. Certification ECU (smart key ECU assembly), Combination meter assembly, ECM, Parking assist ECU

      3. Outer mirror control ECU assembly, No. 2 main body ECU, Main body ECU (cowl side junction block LH)

      		 Front (rear) dome light, door mirror foot light, center console spot light, and interior foot light control does not operate. -
      While the interior foot light is illuminated, the center console does not turn off. -

      When the interior foot light is illuminated, the dimmer operates.

      When the engine switch is on (IG), the door mirror foot light does not operate by the manual unlock.

      		 -
      When the side monitor is operating, the door mirror foot light can illuminate. -
      Body (BDB) Back door System that operates the hazard warning lights as an answer back when the power back door begins to operate.

      1. Power back door unit assembly (power back door ECU)

      2. Power back door unit assembly (power back door ECU)

      3. Main body ECU (cowl side junction block LH)

      		 The hazard warning light answer back does not operate when the back door begins to operate. .-
      Back door opener The system that releases the door latch (turns opener motor on) by turning on the switch built into the outside door handle.

      1. Main body ECU (cowl side junction block LH)

      2. Combination meter assembly

      3. Main body ECU (cowl side junction block LH)

      		 Prohibits the back door opener control. -
      One motion power back door opener System that unlocks and opens the back door in one motion when the wireless back door opening operation is performed.

      1. Main body ECU (cowl side junction block LH)

      2. Power back door unit assembly (power back door ECU)

      3. Power back door unit assembly (power back door ECU)

      		 Back door opener control does not operate. -
      Display automatic dimmer control System that controls the brightness of the interior display/indicators, etc. only during twilight and nighttime by determining the time of day and using the light sensor signal.

      1. Main body ECU (cowl side junction block LH)

      2. Combination meter assembly

      3. Windshield wiper ECU, No. 2 main body ECU, Combination meter assembly, Multi-media module receiver assembly, Air conditioning amplifier assembly, Parking assist ECU

      Operates the display automatic dimmer control when the tail cancel switch is on.

      When the value of the light sensor illumination intensity signal is less than the display dimmer value, the brightness of the vehicle interior display/indicator is dimmed.

      		 -
      Power window The system that operates power window control based on the request from wireless/smart access control.

      1. Main body ECU (cowl side junction block LH)

      2. Certification ECU (smart key ECU assembly)

      3. -

      Power window control does not operate.

      Power window control stops during wireless/smart power window control operation.

      		 -
      Verification (IDT) Entry function Entry and start/lock/back door/warning, etc.

      1. Certification ECU (smart key ECU assembly)

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      • The entry lock/ unlock does not operate.

      • The entry back door does not operate.

      • The entry and start warning message does not operate.

      • The key lock-in prevention function does not operate.

      • The entry illumination does not operate.

      		 -
      Package default setting. -

      1. -

      2. Combination meter assembly

      3. -

      		 The vehicle speed is determined to be 0 km/h (0 mph). -
      - -
      Wireless buzzer function The wireless buzzer sounding control.

      1. Certification ECU (smart key ECU assembly)

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. Main body ECU (cowl side junction block LH)

      		 Does not sound even though there is a wireless buzzer request. -
      Package default settings. -

      1. -

      2. Suspension control ECU

      3. -

      		 Does not sound even though there is an access mode warning buzzer request. -
      Immobiliser function The immobiliser control by the warning and remote engine start.

      1. Certification ECU (smart key ECU assembly)

      2. -

      3. -

      		 - -

      1. -

      2. ECM

      3. -

      		 The engine switch is forcibly turned off. -
      Verification (IDT) Wireless function Wireless electric wave information transmission.

      1. Certification ECU (smart key ECU assembly)

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      		 - -
      Security function Security alarm control.

      1. Certification ECU (smart key ECU assembly)

      2. -

      3. -

      		 - -

      1. -

      2. Main body ECU (cowl side junction block LH)

      3. -

      The alarm is not unset.

      The alarm is not set.

      		 -

      1. -

      2. ECM

      3. -

      		 The alarm is not unset by the engine start. -
      Gateway (CGW) Gateway function Transmits frames between the V bus and motion control system bus.

      1. Network gateway ECU

      2. Seat belt control ECU

      3. -

      • Transmission interval counter (the selected RAM and CAN controller initialization).

      • Extremely late frame rejection function (the RAM of the gateway application and the selected RAM initialization).

      • Reception interval counter (the selected RAM and CAN controller initialization).

      		 -

      1. Network gateway ECU

      2. Distance control ECU assembly

      3. -

      1. Network gateway ECU

      2. Parking assist ECU

      3. -

      1. Network gateway ECU

      2. Steering angle sensor

      3. -

      1. Network gateway ECU

      2. Suspension control ECU

      3. -

      1. Network gateway ECU

      2. Master cylinder solenoid (skid control ECU)

      3. -

      1. Network gateway ECU

      2. Yaw rate sensor assembly

      3. -

      1. Network gateway ECU

      2. Steering control ECU

      3. -

      1. Network gateway ECU

      2. 4WD control ECU

      3. -

      1. Network gateway ECU

      2. -

      3. -