CAN COMMUNICATION SYSTEM FAIL-SAFE CHART


  1. FAIL-SAFE FUNCTION


    1. When communication fails in any of the CAN bus lines (communication lines), a fail-safe function(s) will operate. The fail-safe function that is specified for each system operates to prevent those systems from malfunctioning.

    2. The following table shows the effects on each system when communication is impossible. (For further details, see the pages for each system.)

      Function

      Control Master

      (Main ECU to determine controls)

      		 System Related Fail-safe Operation Driver Detectable

      DTC Detection

      (ECU that stored DTC)
      ABS control Brake actuator assembly - Only EBD control is available.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light illuminates.

      U0073

      (Brake actuator assembly)
      VSC control Brake actuator assembly

      • ECM

      • Steering sensor

      • Airbag sensor assembly

      • VSC is disabled.

      • Only EBD control is available.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light illuminates.

      U0073

      U0100

      U0123

      U0126

      (Brake actuator assembly)
      TRC control Brake actuator assembly

      • ECM

      • Steering sensor

      • Airbag sensor assembly

      • TRC is disabled.

      • Only EBD control is available.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light illuminates.

      U0073

      U0100

      U0123

      U0126

      (Brake actuator assembly)

      Hill-start Assist Control


      • Maintains brake torque in order to prevent the vehicle from rolling backwards when stopped on an uphill road.

      		 Brake actuator assembly

      • ECM

      • Steering sensor

      • Airbag sensor assembly

      • Hill-start assist control is disabled.

      • Only EBD control is available.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light illuminates.

      U0073

      U0100

      U0123

      U0126

      (Brake actuator assembly)

      PCS Control


      • Applies the brakes based on information from the radar/camera system in order to avoid a collision.

      		 Brake actuator assembly Millimeter wave radar sensor assembly PCS brake control is disabled.

      • ABS warning light illuminates.

      • SLIP indicator light illuminates.

      • Brake warning light illuminates.

      U0073

      (Brake actuator assembly)

      ACC Control


      • Applies the brakes based on information from the radar/camera system in order to follow the vehicle in front.

      		 Brake actuator assembly ECM ACC brake control is disabled.

      • ABS warning light illuminates.

      • SLIP indicator light illuminates.

      • Brake warning light illuminates.

      U0073

      (Brake actuator assembly)

      Brake Hold Control


      • Maintains the brake oil pressure when the vehicle is stopped.

      		 Brake actuator assembly

      • ECM

      • Steering sensor

      • Airbag sensor assembly

      • Main body ECU (multiplex network body ECU)

      • Engine stop and start ECU

      		 Brake hold control is disabled.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light illuminates.

      U0073

      U0100

      U0123

      U0126

      U0142

      U1103

      (Brake actuator assembly)

      DAR Control


      • Automatically releases EPB when accelerator pedal is depressed while EPB is still in a locked condition.

      		 Brake actuator assembly

      • ECM

      • Steering sensor

      • Airbag sensor assembly

      • Engine stop and start ECU

      		 DAR control is disabled.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light illuminates.

      • Electric parking brake warning light illuminates.

      U0073

      U0100

      U0123

      U0126

      U0142

      U1103

      (Brake actuator assembly)
      Vehicle Speed Display Combination meter assembly Brake actuator assembly Speedometer is controlled based on a default vehicle speed of 0 km/h (0 mph). -

      U0129

      (Combination meter assembly)
      Tachometer Display Combination meter assembly ECM Needle of tachometer remains at 0 rpm. -

      U0100

      (Combination meter assembly)

      Meter Display


      • Displays vehicle condition and controls indicator lights.

      		 Combination meter assembly

      • Power steering ECU assembly

      • Airbag sensor assembly

      • Brake actuator assembly

      • ECM

      • Forward recognition camera

      • Headlight ECU sub-assembly LH

      • Vehicle information is not displayed.

      • Lights do not illuminate or lights remain illuminated.

      		 -

      U0100

      U0129

      U0131

      U0151

      U0182

      (Combination meter assembly)

      Air Conditioning Control


      • Corrects engine speed, such as for idle up.

      • Controls outlet air temperature, outlet mode change and airflow volume based on engine coolant temperature signal.

      		 Air conditioning amplifier assembly ECM

      • If the target frame cannot be received, the previous values are kept.

      • When it is judged that there is a communication interruption, value is set to 80°C (176°F).

      		 -

      U0100

      (Air conditioning amplifier assembly)

      Engine Stop and Start System Control


      • Controls prohibition/startup requests according to engine stop and start system information.

      		 Air conditioning amplifier assembly Engine stop and start ECU If the target frame cannot be received, the previous values are kept. - -

      Compressor Control


      • Judges compressor lock according to engine speed.

      		 Air conditioning amplifier assembly ECM If the target frame cannot be received, the previous values are kept. -

      U0100

      (Air conditioning amplifier assembly)

      Simple Load Control


      • Performs electric load control according to load control level signal.

      		 Air conditioning amplifier assembly Power steering ECU assembly If the target frame cannot be received, the previous values are kept. -

      U0131

      (Air conditioning amplifier assembly)

      Panel Dimming Control


      • Outputs dimming information to the A/C panel according to the display dimming information.

      		 Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) If the target frame cannot be received, the previous values are kept. -

      U0142

      (Air conditioning amplifier assembly)

      Destination Determination Control


      • Switches the A/C control pattern according to the destination information.

      		 Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) If the target frame cannot be received, the previous values are kept. -

      U0142

      (Air conditioning amplifier assembly)

      Ambient Temperature Correction Control


      • Switches air conditioning system operation condition and corrects value of displayed ambient temperature according to vehicle speed signal.

      		 Air conditioning amplifier assembly Combination meter assembly

      • If the target frame cannot be received, the previous values are kept.

      • When it is judged that there is a communication interruption, value is set to 0 km/h (0 mph)

      		 -

      U0155

      (Air conditioning amplifier assembly)

      Solar Calibration Control


      • Calibrates air conditioning control using the value from the solar sensor.

      		 Air conditioning amplifier assembly Main body ECU (multiplex network body ECU)

      • If the target frame cannot be received, the previous values are kept.

      • When it is judged that there is a communication interruption, value is set to 0 W/m2.

      		 -

      U0142

      (Air conditioning amplifier assembly)

      Outside temperature compensation control


      • Based on outside air temperature sensor data values, air conditioning control compensation and outside air temperature display output value compensation are performed.

      		 Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) If the target frame cannot be received, the previous values are kept. -

      U0142

      (Air conditioning amplifier assembly)

      Freeze frame data output function


      • Controlled according to timestamp request specifications.

      		 Air conditioning amplifier assembly Central gateway ECU (network gateway ECU) If the target frame cannot be received, the previous values are kept. - -

      Blind Spot Monitor Control


      • Detects vehicle in blind spot of adjacent lane and informs driver.

      		 Blind spot monitor sensor LH

      • Steering sensor

      • Brake actuator assembly

      • Main body ECU (multiplex network body ECU)

      • ECM

      		 - Displays messages on the multi-information display.

      U0100

      U0126

      U0129

      U0142

      (Blind spot monitor sensor LH)

      LDA System


      • Sounds an alarm when deviating from the lane, and performs steering assist toward the center of the lane.

      		 Forward recognition camera

      • ECM

      • Steering sensor

      • Brake actuator assembly

      • Power steering ECU assembly

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly

      • Millimeter wave radar sensor assembly

      		 Control stops.

      • Displays messages on the multi-information display.

      • Buzzer sounds.

      U0100

      U0123

      U0126

      U0129

      U0131

      U0142

      U0155

      U0235

      U023A

      (Forward recognition camera)

      Automatic High Beam Function


      • High Beam Light Distribution Control

      		 Forward recognition camera

      • ECM

      • Main body ECU (multiplex network body ECU)

      • Steering sensor

      • Brake actuator assembly

      		 The current state is maintained.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      B124B

      (Main body ECU (multiplex network body ECU))

      Road Sign Assist Function


      • Road Sign Assist

      		 Forward recognition camera

      • Brake actuator assembly

      • Airbag sensor assembly

      		 Road sign assist function is canceled.

      • Master warning light illuminates.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0123

      U0129

      (Forward recognition camera)

      Dynamic Radar Cruise Control System


      • Accelerates or decelerates the vehicle to maintain the distance to the vehicle ahead.

      		 Millimeter wave radar sensor assembly

      • Brake actuator assembly

      • Airbag sensor assembly

      • ECM

      		 Control stops. Displays messages on the multi-information display.

      U0100

      U0125

      U0126

      U0129

      (Millimeter wave radar sensor assembly)

      Pre-collision System


      • Controls the brakes immediately before a crash.

      		 Millimeter wave radar sensor assembly

      • ECM

      • Forward recognition camera

      • Brake actuator assembly

      • Steering sensor

      • Airbag sensor assembly

      		 Control stops.

      • Displays messages on the multi-information display.

      • Buzzer Sounds.

      U0100

      U0125

      U0126

      U0129

      U0235

      U023A

      U1002

      (Millimeter wave radar sensor assembly)

      Entry Function


      • Entry lock/unlock and back door unlatch

      • Warning

      • Performs entry illumination (Interior illumination, etc.).

      • Displays messages to inform the driver that it is possible to start the SFI system.

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly

      • Entry lock/ unlock or back door unlatch does not operate.

      • Warning functions (Key confinement, Key not in vehicle, Key reminder etc.) do not operate, Key confinement prevention control does not operate.

      • Entry illumination does not operate.

      		 -

      U0100

      U0142

      U0155

      (Certification ECU (smart key ECU assembly))

      Wireless Function


      • Operates the wireless lock/unlock functions, etc.

      		 Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) Wireless lock/unlock function do not operate. -

      U0142

      (Certification ECU (smart key ECU assembly))

      Engine Switch Backlighting Control


      • Turns on/off engine switch illumination linked with interior lights etc.

      		 Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU)

      • When the engine switch backlight is not illuminated:

        Does not illuminate.

      • When the engine switch backlight is illuminated as the DOME light illuminates:

        Does not turn off.

      		 -

      U0142

      (Certification ECU (smart key ECU assembly))

      Security Indicator Display Function


      • Displays the immobiliser security condition.

      		 Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) Security condition cannot display normally (illuminates during security warning preparation/security warning). -

      U0142

      (Certification ECU (smart key ECU assembly))

      Air Conditioning Control


      • Controls air conditioning functions such as set temperature adjustment, air outlet selection, etc. by operating display audio controller or Remote Touch.

      		 Radio and display receiver assembly Air conditioning amplifier assembly

      • Air conditioning system indicators turn off.

      • If set temperature is shown on multi-information display or multi-display, set temperature display turns off.

      		 Displays messages on the multi-information display.

      U0073

      U0164

      (Radio and display receiver assembly)

      Fuel Consumption Display


      • Displays graph of fuel consumption per minute and history of total fuel consumption.

      		 Radio and display receiver assembly

      • ECM

      • Brake actuator assembly

      • Combination meter assembly

      When communication with ECM or brake actuator assembly is interrupted:


      • Display is not updated.

      When communication with combination meter assembly is interrupted:


      • Depending on the interrupted signal, the instantaneous fuel economy, average speed, elapsed time (after start) or drivable mileage is not displayed.

      • Numeric part of driveable mileage is cleared.

      		 -

      U0100

      U0129

      U0155

      (Radio and display receiver assembly)

      Destination Identification


      • Identifies destination based on destination and destination package information, and selects the time zone and language used for the display.

      		 Radio and display receiver assembly Main body ECU (multiplex network body ECU) Determines the destination according to the last received value and operates accordingly (if there is no last received value, the system operates using the default value). Time zone and language selection screen are different from actual destination.

      U0140

      (Radio and display receiver assembly)

      Vehicle Customize Function


      • Changes the behavior and control parameters of various functions (illumination lighting time, etc.) according to the user operation via the screen.

      		 Radio and display receiver assembly

      • Main body ECU (multiplex network body ECU)

      • Air conditioning amplifier assembly

      • Certification ECU (smart key ECU assembly)

      • When a remote communication usage application is performed (customize or remote diagnosis), the information is processed regardless of whether the main body ECU (multiplex network body ECU) has permitted or prohibited remote communication.

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

      		 The customize options for items related to the ACN, BDB and IDT are not displayed or the settings cannot be saved.

      • U0073

      • B15F5

      • B15F6

      • B15F7

      (Radio and display receiver assembly)

      Meter-linked Function


      • Changes display based on customization information set through the meter. Outputs the customization information set in the system.

      		 Radio and display receiver assembly Combination meter assembly Maintains the last valid state. - -

      Information Sound Adjustment Function


      • Receives flags from the driving support ECU to operate the alarm, and limits or mutes multimedia audio while the alarm is in operation.

      		 Radio and display receiver assembly

      • Forward recognition camera

      • Clearance warning ECU assembly

      		 Audio mute is canceled. - -

      Rear View Monitor System


      • Displays images from the rear view camera.

      		 Radio and display receiver assembly ECM Screen does not change to the camera screen. -

      U0100

      (Radio and display receiver assembly)

      Display Dimming Control


      • Dims the parking assist pre support switch assembly indicator.

      		 Clearance warning ECU assembly Main body ECU (Multiplex network body ECU)

      • When communication is interrupted when the ignition switch is turned ON, control is performed based on default value (dimming).

      • When communication is interrupted while the ignition switch is ON, control is performed based on the latest information.

      		 -

      U0142

      (Clearance warning ECU assembly)

      Shift position judgment


      • Uses received shift position signal as a clearance sonar detection operation condition.

      		 Clearance warning ECU assembly ECM Control operates with the default shift position P. -

      U0101

      (Clearance warning ECU assembly)

      Vehicle speed judgment


      • Receives vehicle speed signals and changes the clearance sonar detection conditions accordingly.

      		 Clearance warning ECU assembly Combination meter assembly Clearance sonar detection will be operated based on a vehicle speed of 20 km/h (12 mph) or more. -

      U0155

      (Clearance warning ECU assembly)

      Distance Correction


      • Corrects distance measured using the ultra sonic sensors based on outside temperature signal.

      		 Clearance warning ECU assembly Air conditioning amplifier assembly

      • Operation continues at the default outside temperature of 25°C (77°F).

      • Simple intelligent parking assist system operation is canceled.

      		 Simple intelligent parking assist system operation is canceled (a message is displayed on the multi-information display and the buzzer sounds).

      U0164

      (Clearance warning ECU assembly)

      Engine Status Check


      • Checks engine status and uses it to judge if the simple intelligent parking assist system can be used.

      		 Clearance warning ECU assembly ECM When communication is interrupted, simple intelligent parking assist system operation is canceled. Simple intelligent parking assist system operation is canceled (a message is displayed on the multi-information display and the buzzer sounds).

      U0100

      (Clearance warning ECU assembly)

      Brake Status Judgment


      • Checks brake status and uses it to judge if the simple intelligent parking assist system can be used.

      		 Clearance warning ECU assembly Brake actuator assembly When communication is interrupted, simple intelligent parking assist system operation is canceled. -

      U0129

      (Clearance warning ECU assembly)

      Steering Wheel Control


      • Checks the status of the steering sensor and power steering ECU assembly and judges start/cancel of simple intelligent parking assist control. Also checks steering sensor status and sends the steering angle signal to the power steering ECU assembly.

      		 Clearance warning ECU assembly Power steering ECU assembly Simple intelligent parking assist system operation is canceled. Simple intelligent parking assist system operation is canceled (a message is displayed on the multi-information display and the buzzer sounds).

      U0126

      U0131

      (Clearance warning ECU assembly)

      Side Turn Signal Check


      • Checks side turn signal status and decides detection direction.

      		 Clearance warning ECU assembly Combination meter assembly Simple intelligent parking assist system operation is canceled. Simple intelligent parking assist system operation is canceled (a message is displayed on the multi-information display and the buzzer sounds).

      U0155

      (Clearance warning ECU assembly)

      Moving Backward Judgment


      • Detects that the vehicle is moving backward using the yaw rate and acceleration sensor signal.

      		 Clearance warning ECU assembly Airbag sensor assembly Simple intelligent parking assist system operation is canceled. Simple intelligent parking assist system operation is canceled (a message is displayed on the multi-information display and the buzzer sounds).

      U0151

      (Clearance warning ECU assembly)

      Mute switch judgment


      • Changes the clearance sonar system settings when the mute switch is operated.

      		 Clearance warning ECU assembly Combination meter assembly Control operates with the latest setting. -

      U0155

      (Clearance warning ECU assembly)

      Power Steering Control


      • Calculates assist current according to torque sensor value and vehicle speed and drives motor.

      		 Power steering ECU assembly

      • ECM

      • Brake actuator assembly

      • Airbag sensor assembly

      • Steering sensor

      • Control is performed temporarily with the steering assist amount set to that used when the vehicle speed is 100 km/h (62 mph).

      • Zero point learning is not performed.

      • Drivability degrades (compensation control using steering angle is stopped).

      		 EPS warning light illuminates.

      U0100

      U0129

      (Power steering ECU assembly)

      Assist Map Selection


      • Selects proper assist map according to destination, engine type, etc.

      		 Power steering ECU assembly ECM Default map is used to assist because proper assist map cannot be selected. (Steering feel may be different.) EPS warning light illuminates.

      C1581

      (Power steering ECU assembly)

      VDIMα System


      • Calculates current to be used for steering assist according to commanded value from VSC, and then operates motor.

      		 Power steering ECU assembly Brake actuator assembly VDIMα control is stopped. -

      U0129

      (Power steering ECU assembly)

      Engine/Hybrid Toggle


      • So that the same parts can be used for conventional and hybrid vehicles, this toggles the communication type.

      		 Power steering ECU assembly ECM Control is performed temporarily with the steering assist amount set to that used when the vehicle speed is 100 km/h (62 mph). EPS warning light illuminates.

      U0100

      (Power steering ECU assembly)

      Engine System Indicator Display


      • Estimates whether injectors are clogged and requests that a message be displayed informing user that injectors need maintenance.

      • Estimates whether oil has deteriorated and requests that a message be displayed informing user that oil needs to be replaced.

      		 ECM Combination meter assembly

      • System is unable to inform user that oil needs to be replaced or injectors need maintenance.

      • Combination meter display cannot be cleared.

      		 - -

      Electric Load Control


      • Performs idle up according to electric load.

      		 ECM

      • Air conditioning amplifier assembly

      • Power steering ECU assembly

      • Main body ECU (multiplex network body ECU)

      		 Idle up according to electric load is not performed. Not possible. (Idle speed changes.) -

      Air Conditioning Cooperative Operation


      • Performs idle up according to compressor load.

      • Performs air conditioning cut control.

      		 ECM Air conditioning amplifier assembly Air conditioning system does not use cooperative controls. (Idle up is not performed.) Air conditioning system does not operate. -

      Charge Control


      • Performs idle up according to charging request.

      		 ECM

      • Air conditioning amplifier assembly

      • Main body ECU (multiplex network body ECU)

      		 Idle up according to charging request is not performed. Taillights flicker and blower airflow changes. -

      Sprung mass damping control


      • Uses transitional driving force control is to improve behavior (pitch, bounce) of sprung vehicle mass when disturbed.

      		 ECM

      • Brake actuator assembly

      • 4WD ECU assembly

      		 Sprung vehicle mass damping control does not operate. Does not use transitional driving force control to improve behavior (pitch, bounce) of sprung vehicle mass when disturbed. - -

      Eco Driving Indicator


      • Displays information to the driver to encourage Eco-driving.

      		 ECM - - No information is displayed. -

      Integrated Control (VDM)


      • Estimates the driver requested torque based on the accelerator pedal operation and performs torque characteristic control according to driving conditions so that driveability, acceleration performance and acceleration feeling are improved.

      		 ECM

      • Millimeter wave radar sensor assembly

      • Brake actuator assembly

      • Airbag sensor assembly

      • Steering sensor

      		 Does not estimate the driver requested torque based on the accelerator pedal operation and does not perform torque characteristic control according to driving conditions and as a result, driveability, acceleration performance and acceleration feeling are not improved. - -

      Eco Control


      • Adjusts throttle response in consideration of actual fuel economy.

      		 ECM

      • Air conditioning amplifier assembly

      • Main body ECU (multiplex network body ECU)

      		 Eco mode does not operate. - -

      ECT System Indicator Display


      • Meter display (Displays shift position, states of switches, system modes, etc.)

      		 ECM Combination meter assembly Indicator light does not illuminate. - -

      Neutral Control


      • Reduces engine load and performs idle up.

      		 ECM

      • Brake actuator assembly

      • Airbag sensor assembly

      		 Neutral control is not performed. -

      U0129

      U012987

      (ECM)

      Coast Downshift Timing Change According to Air Conditioning Load


      • Delays upshifts according to warm-up request.

      		 ECM Air conditioning amplifier assembly Coast downshift does not occur. Coast downshift shock reduction performance deteriorates. -

      Cruise Control


      • Controls vehicle speed by adjusting throttle valve angle automatically.

      		 ECM

      • Millimeter wave radar sensor assembly

      • Brake actuator assembly

      • Combination meter assembly

      		 Cruise control does not operate. Displays messages on the multi-information display. -

      Stop and Start Control


      • Starts and stops the engine using the stop and start control.

      		 ECM Engine stop and start ECU Stop and start control does not operate. -

      U1103

      U110387

      (ECM)

      Headlight Leveling Control (Headlight Control)


      • Adjusts headlights vertical aiming according to wheel speed and vehicle pitch angle determined using vehicle height sensor.

      		 Headlight ECU sub-assembly LH

      • Brake actuator assembly

      • Main body ECU (multiplex network body ECU)

      		 Control stops. -

      U0129

      U0142

      (Headlight ECU sub-assembly LH)

      Headlight Leveling Indicator


      • Monitors leveling system malfunctions and when a malfunction is detected, sends an indicator illumination request to the combination meter assembly.

      		 Headlight ECU sub-assembly LH Combination meter assembly Maintains the leveling indicator state. -

      U0155

      (Headlight ECU sub-assembly LH)

      Destination Identification


      • Checks if the destination information stored in the headlight ECU sub-assembly LH and the destination information data transmitted in the CAN bus lines are the same.

      		 Headlight ECU sub-assembly LH

      • ECM

      • Main body ECU (multiplex network body ECU)

      		 - -

      U0100

      U0142

      (Headlight ECU sub-assembly LH)

      Low Beam Headlights, High Beam Headlights, Clearance Lights and Side Marker Lights


      • Turns the specified light source on and off according to low beam, high beam command data.

      		 Main body ECU (multiplex network body ECU) Headlight ECU sub-assembly LH The low beam headlights, clearance lights and side marker lights are forcibly illuminated. -

      U0142

      (Headlight ECU sub-assembly LH)

      LED Headlight Indicator


      • Monitors low beam LED malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.

      		 Headlight ECU sub-assembly LH Combination meter assembly Maintains the LED headlight indicator status.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0073

      U1000

      (Headlight ECU sub-assembly LH)

      Headlight Cleaner Signal Output


      • Outputs the headlight cleaner relay ON signal based on the direct line front washer switch signals, headlight cleaner switch signals, low beam illumination command from the main body ECU (multiplex network body ECU) and IG data.

      		 Headlight ECU sub-assembly LH Combination meter assembly Stops headlight cleaner operation. -

      U0142

      (Headlight ECU sub-assembly LH)

      Door Lock


      • Controls key linked and automatic door lock/unlock function, key confinement prevention function, etc.

      		 Main body ECU (multiplex network body ECU) Airbag sensor assembly Key linked door lock/unlock function is performed even when the ignition switch is ON and the driver seatbelt is fastened. -

      U0151

      (Main body ECU (multiplex network body ECU))

      Alarm


      • Sounds various warnings.

      		 Main body ECU (multiplex network body ECU)

      • ECM

      • Certification ECU (smart key ECU assembly)

      		 - -

      U0100

      U0120

      (Main body ECU (multiplex network body ECU))

      Automatic Dimming of Display


      • Controls display dimming control.

      		 Main body ECU (multiplex network body ECU) Combination meter assembly Automatically performs display dimming control when tail mode is not canceled (when the light sensor illuminance signal value is less than the display dimming value, the interior displays and indicators are dimmed). -

      U0155

      (Main body ECU (multiplex network body ECU))

      Illumination


      • Performs illumination control.

      		 Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • The dome light turns off.

      • The outside handle illumination turns off.

      • The foot light is adjusted.

      		 The dome light does not turn off immediately after exiting the vehicle.

      U0101

      U0327

      (Main body ECU (multiplex network body ECU))

      Diagnostic/C-BEST


      • Diagnostic phase 4 communication.

      		 - All ECUs connected to CAN Exits diagnostic mode. - -

      Entry and Start Function/Wireless


      • Controls entry and start function/wireless functions.

      		 Certification ECU (smart key ECU assembly) Certification ECU (smart key ECU assembly) Entry lock/unlock control not possible. -

      U0327

      (Main body ECU (multiplex network body ECU))

      Lighting Control


      • Controls the daytime running lights.

      		 Main body ECU (multiplex network body ECU) ECM Daytime running light control is not performed. -

      U0100

      (Main body ECU (multiplex network body ECU))

      TPMS


      • Monitors the tire pressure and meter speed, etc. and operates the meter indicators and multi-information display.

      		 Main body ECU (multiplex network body ECU) Combination meter assembly Sends an initial communication value to the BERKES. The tire pressure monitor sensor indicator in the combination meter assembly blinks for 1 minute and then stays illuminated.

      U0155

      (Main body ECU (multiplex network body ECU))

      Automatic High Beam


      • Detects oncoming traffic, vehicles ahead, street lights, etc. using an onboard sensor and automatically turns the high beam lights on and off.

      		 Main body ECU (multiplex network body ECU)

      • Headlight ECU sub-assembly LH

      • Forward recognition camera

      		 The system does not operate.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0182

      U023A

      (Main body ECU (multiplex network body ECU))

      Lighting Control


      • The headlight ECU controls the loading around the headlights (body ECU sends an illumination request to headlight ECU)

      		 Headlight ECU sub-assembly LH Main body ECU (multiplex network body ECU) -

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0182

      (Main body ECU (multiplex network body ECU))

      Lighting Control


      • European headlight auto-cut

      		 Main body ECU (multiplex network body ECU) Brake booster with master cylinder assembly Maintains previous values. -

      U0129

      (Main body ECU (multiplex network body ECU))

      ATC-4WD System


      • Controls drive force of the front and rear wheels in accordance with the driving conditions.

      		 4WD ECU assembly

      • ECM

      • Steering sensor

      • Brake actuator assembly

      • Airbag sensor assembly

      • Main body ECU (multiplex network body ECU)

      • Air conditioning amplifier assembly

      Depending on the malfunctioning communication line, any of the following controls are performed.


      • Control is prohibited.

      • Control is maintained using the latest value received from the airbag sensor assembly.

      • Control is maintained using the latest value received from the brake actuator assembly.

      • Control is maintained using the latest value received from the ECU or sensor.

      		 4WD warning light illuminates.

      U0073

      U0100

      U0126

      U0129

      (4WD ECU assembly)

      ERA-GLONASS


      • Makes an emergency call to the center and notifies an operator of the vehicle location when deployment of an airbag is detected or the manual (SOS) switch is pressed.

      		 Telematics transceiver ECM When communication with the ECM is lost or there is a communication error, the manual (SOS) switch indicator (red) illuminates. -

      U0100

      (Telematics transceiver)

      Stop and Start System


      • Stops the engine when the vehicle is stationary.

      		 Engine stop and start ECU

      • Air conditioning amplifier assembly

      • Skid control ECU (brake actuator assembly)

      • ECM

      • Power steering ECU assembly

      • Steering sensor

      • Main body ECU (multiplex network body ECU)

      • Airbag sensor assembly

      • Clearance warning ECU assembly

      • When driving in eco drive mode, the engine starts.

      • When not driving in eco drive mode, eco drive cannot be performed.

      		 Stop and start cancel indicator light blinks.

      U0100

      U0121

      U0123

      U0126

      U0131

      U0140

      U0151

      U0164

      U1110

      (Engine stop and start ECU)