FAIL-SAFE FUNCTION
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.
The following table shows the effects on each system when communication is impossible. (For further details, see the pages for each system.)
| Function |
|
Fail-safe Function System Behavior | Indicator and Buzzer Behavior or User Notification | DTC Detection (ECU that stored DTC) |
|---|---|---|---|---|
| Air Conditioner
|
|
|
Nothing | U0293 (Air conditioning amplifier assembly) |
| Simple Load Control (Limits electrical load control according to the load control level.) |
|
While the power switch is on (IG), the current state is maintained (during a reset, there is no load control). There is no default behavior for power source modes other than on (IG). | Nothing | U0131 (Air conditioning amplifier assembly) |
| Panel Control
|
|
While the power switch is on (IG), the switch is off and the exhaust gas availability information is maintained. There is no default behavior for power source modes other than on (IG). | Cannot change the operation state of the air conditioning system when the power switch is on (IG). | U0163 (Air conditioning amplifier assembly) |
| Panel Dimming Control (Outputs dimming information to the LIN panel according to the display dimming information.) |
|
While the power switch is on (IG), the current state is maintained (during a reset, dimming control is performed). There is no default behavior for power source modes other than on (IG). | Cannot switch between dimming states (after a reset is performed, the system stays in dimming mode). There is no way to recognize a failure while in power source modes other than on (IG). | U0142 (Air conditioning amplifier assembly) |
| Destination Determination Control (Switches the A/C control pattern according to the destination information.) |
|
While the power switch is on (IG), the current state is maintained. There is no default behavior for power source modes other than on (IG). | Nothing | U0142 (Air conditioning amplifier assembly) |
| Remote Start Control (Controls the air conditioning operation state according to remote start information.) |
|
While the power switch is on (IG), remote start control is not performed. There is no default behavior for power source modes other than on (IG). | While the power switch is on (IG), the A/C system does not begin operation according to the remote start information. There is no way to recognize a failure while in power source modes other than on (IG). | - |
| Outside Temperature Compensation Control (Changes the air conditioning system operation state and adjusts the outside temperature display value according to the vehicle speed.) |
|
While the power switch is on (IG), control is performed with the default vehicle speed value (0 km/h [0 mph]). There is no default behavior for power source modes other than on (IG). | The value displayed for the outside temperature is less reliable and may not match with the actual outside temperature. The proper airflow volume level for the air conditioning system may be incorrect (while the power switch is on [IG]). | U0155 (Air conditioning amplifier assembly) |
| Air Conditioning ECO Control (ECO-mode control is performed.) |
|
While the power switch is on (IG), the previous value is maintained (after a reset, the system stays in its normal state of operation). | Nothing | - |
| Engine System Indicator Display
|
|
|
|
- |
| Electrical Load Control (Idle up according to the electrical load is performed.) |
|
Idle up according to the electrical load is not performed. | The idling speed changes. | - |
| Air Conditioner
|
|
Air conditioning-linked control does not operate (cannot perform idle up). | During an ACN malfunction, the air conditioner does not operate. | - |
| PTC Heater (Performs idle up according to requests from the PTC heater [including the coolant heater] or heater system.) |
|
The PTC heater does not operate (permission is not granted). |
|
- |
| Charging Control (Performs idle up according to charging requests.) |
|
Prohibits charging control and the alternator autonomously generates electricity. | Nothing | - |
| Eco Driving Indicator (Displays information to the driver to encourage eco-driving.) |
|
Nothing | 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 drivability, acceleration performance and acceleration feeling are improved.) |
|
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, drivability, acceleration performance and acceleration feeling are not improved. | 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, drivability, acceleration performance and acceleration feeling are not improved. | - |
| Eco Control (Performs electronic throttle control according to fuel consumption.) |
|
Eco mode does not operate. | Eco mode does not operate. | - |
| ECT System Indicator (Indicates the shift position, states of switches, system modes, etc.) |
|
Nothing | ECT system indicator turns off. | - |
| AI-SHIFT Control (Controls the automatic transmission in order to improve engine braking power and acceleration feel.) |
|
AI-SHIFT control does not operate. | Nothing | - |
| Coast Downshift/Heater Requested Upshift Delay (Changes the coast downshift point based on the air conditioning load. Performs heater requested upshift delay.) |
|
Coast downshift does not operate. | Coast downshift shock becomes stronger. | - |
| Cruise Control (Adjusts the engine throttle valve opening amount automatically to control the vehicle.) |
|
Nothing |
|
- |
|
A warning message is displayed (when the cruise control main switch is on). | U0293 (Driving support ECU assembly) |
||
| Meter Display Control (Sends requests to the combination meter to illuminate various indicators and display various items on the multi-information display.) |
|
Nothing | The engine coolant temperature, fuel consumption values, etc. are not properly displayed. | - |
| Fuel Gauge Reception (Used for determining when the vehicle has ran out of fuel.) |
|
Nothing | Nothing | - |
| Electric Fan (Control electric fan according to A/C requests.) |
|
Fan operates in fail-safe mode. | Nothing | - |
| Electronic Power Steering System (Calculates the current to be used for the steering assist according to the torque sensor value and vehicle speed, and then operates the motor.) |
|
|
The EPS warning light illuminates. |
(Power steering ECU assembly) |
| VDIMα System (Calculates the current to be used for the steering assist according to the commanded value from VSC [Electronically Controlled Brake System], and then operates the motor.) |
|
VDIMα control is stopped. | Nothing | U0129 (Power steering ECU assembly) |
| Simple Load Control (Determines the current power supply and load status, and sends commands to limit control.) |
|
Nothing | Nothing | - |
| αB Control (Performs assist to prevent sliding sideways.) |
|
During αB control, if the data becomes invalid, control stops. | The EPS warning light illuminates. | U0129 (Power steering ECU assembly) |
| Steering Assist Calculation (Changes the assist force according to the vehicle speed.) |
|
|
The EPS warning light illuminates. | U0129 (Power steering ECU assembly) |
| Assist Start Judgment (Permits assist only when the engine is running.) |
|
|
|
(Power steering ECU assembly) |
| DTC Output (When the TC signal is on, DTC information is sent according to the polling from MET.) |
|
Nothing | Nothing | - |
| Assist Map Selection (Selects the assist map according to the destination information, drivetrain, engine type, etc.) |
|
|
There is no indication of a communication problem. However, the EPS warning light illuminates because an assist map is not selected. | - |
| Warning Light Illumination (When the fail-safe function operates, a request to turn on the EPS light is sent to the combination meter.) |
|
Nothing | Nothing | - |
| Steering Center Point Learning (Learns the steering wheel center point.) |
|
The steering wheel center point is not learned if there is a problem with CAN communication. | The EPS warning light illuminates. | U0129 (Power steering ECU assembly) |
| Compensation Control (Performs assist according to the vehicle speed for various compensation controls.) |
|
When there is a problem with CAN communication (vehicle speed signal), the various controls operate with a set vehicle speed of 100 km/h (62 mph). | The EPS warning light illuminates. | U0129 (Power steering ECU assembly) |
| Stops air conditioning operation in order to decrease battery power consumption when the battery voltage decreases. |
|
Nothing | Nothing | - |
| Vehicle Speed Display (Displays the vehicle speed on the speedometer according to the vehicle speed signal from VSC.) |
|
|
|
U0129 (Combination meter assembly) |
| Tachometer (Displays information on the tachometer.) |
|
|
|
U0100 (Combination meter assembly) |
| HV Indicator (Operates the HV indicator.) |
|
The HV indicator turns of (for needle indicator, a minimum of -100%) | The HV indicator turns of (for needle indicator, a minimum of -100%) | U0100 (Combination meter assembly) |
| Airbag (Turns the SRS warning light on and off.) |
|
The SRS warning light turns on. | The SRS warning light turns on. | U0151 (Combination meter assembly) |
| EPS Warning (Turns the EPS warning light on and off.) |
|
The EPS warning light illuminates. | The EPS warning light illuminates. | U0131 (Combination meter assembly) |
| VGRS (Turns the VGRS warning light on and off.) |
|
|
|
U0130 (Combination meter assembly) |
| SLIP Warning (Turns the SLIP warning light on and off.) |
|
The SLIP indicator turns on | The SLIP indicator turns on | - |
| ECT/ENG System (Display operates the engine coolant temperature gauge.) |
|
The needle of the engine coolant temperature gauge is at the C mark or below. | The needle of the engine coolant temperature gauge is at the C mark or below. | - |
| TPMS (Warning Light) (Turns the tire pressure warning light on and off.) |
|
The TPMS warning light turns on. | The TPMS warning light turns on. | - |
| TPMS (Multi-display) (Displays the pressure in the multi-display.) |
|
The pressure value display turns off. | The pressure value display turns off. | - |
| Meter (Vehicle display) |
|
|
|
(Combination meter assembly) |
| Driving Control (Controls the engine, MG1 and MG2 after receiving engine information.) |
|
Driving with motor. |
|
U0100 (Power management control ECU) |
| Brake Regeneration Control (Tries to regenerate as much energy as possible by performing cooperative control with the ECB*.) |
|
Regeneration braking is prohibited. | EV indicator light illuminates. | U0129 (Power management control ECU) |
| Vehicle Damage Judgment (Collision determination using [CDT_HV] airbag signal.) |
|
Normal driving. | EV indicator light illuminates. | U0151 (Power management control ECU) |
| Airbag Control (A/C ECU and A/C inverter signal transmission) |
|
Normal driving. | Air conditioning does not operate. | U0164 (Power management control ECU) |
| Driving Support System (Cruise control acceleration/deceleration while following vehicle in front.) |
|
Cruise control is prohibited. | Warning is displayed. | U0122 (Power management control ECU) |
| Steering Sensor (Detects the steering wheel angle.) |
|
STR1S01 (STS0=1) is periodically transmitted every 12 ms. | Nothing | - |
| VGRS (Changes the steering gear ratio according to the vehicle speed information and steering angle.) |
|
The VGRS system and DRS system does not operate. |
|
(Front steering control ECU) |
| VDIM-β Operates the active front steering function based on requests from VSC. |
|
The VDIM-β does not operate. |
|
(Front steering control ECU) |
| VDIM-β (Operates the active steering function according to the target steering angle from the VGRS [requested by the VSC].) |
|
The VDIM-β does not operate. |
|
(Rear steering control ECU) |
| DRS (Rotates the rear wheels according to the target angle from the VGRS [the target angle is calculated inside the VGRS using the vehicle speed and steering angle information].) |
|
The VGRS system and DRS system does not operate. |
|
(Rear steering control ECU) |
| VDIM-β (Calculates the current to be used for the steering assist according to the commanded value from the VSC [Electronically Controlled Brake System], and then operates the motor.) |
|
The VDIM-β does not operate. | Nothing |
(Power steering ECU assembly) |
| Anti-lock Brake System Control (Prevents the wheels from locking during sudden stops.) |
|
|
|
(Skid control ECU assembly) |
| Vehicle Stability Control/Traction Control/Vehicle Dynamics Integrated Management Control (Suppresses vehicle instability, such as sliding sideways when cornering and wheel slippage when accelerating from rest. During vehicle dynamics integrated management control, vehicle integrated control which includes electronic steering control is performed.) |
|
|
|
(Skid control ECU assembly) |
| HV Regeneration Cooperative Control (Regeneration cooperative control with the HV system.) |
|
|
|
(Skid control ECU assembly) |
| Brake Hold Function (Prevents the vehicle from moving when the brake pedal is released while the vehicle is stopped. Automatically operates the electric parking brake according to requests from the skid control ECU.) |
|
|
|
(Skid control ECU assembly) |
| Trigger Response/Autonomous Transmission (Outputs the yaw rate and acceleration sensor signal.) |
|
YGS1S03 (YGS0=1) is periodically transmitted every 12 ms. | Nothing | - |
| Static Braking (When the vehicle is stopped, the parking brake electronically operates to hold the vehicle in place when the driver operates the switch.) |
|
It cannot be determined whether the vehicle is stopped or not (there is no effect on this function). | The electric parking brake warning light illuminates. |
(Parking brake ECU assembly) |
| Dynamic Parking Brake (Slows down the moving vehicle with the parking brake. Braking power is only effective while pressing the switch. Once the switch is released, the parking brake is automatically released.) |
|
It cannot be determined whether the vehicle is stopped or not (there is no effect on this function). | The electric parking brake warning light illuminates. |
(Parking brake ECU assembly) |
| Shift-linked Function (When the shift lever is moved to P, the electric parking brake automatically operates. If the shift lever is moved to D, N or R, the electric parking brake is automatically released.) |
|
The shift-linked function is prohibited. |
|
(Parking brake ECU assembly) |
| Brake Hold Function (Prevents the vehicle from moving when the brake pedal is released while the vehicle is stopped. Automatically operates the electric parking brake according to requests from the skid control ECU.) |
|
Brake hold control is prohibited. |
|
(Parking brake ECU assembly) |
| AVS (Controls the variable damping force according to the vehicle state.) |
|
|
Nothing |
(Absorber control ECU) |
| DRS (Rotates the rear wheels according to the target angle from the VGRS [the target angle is calculated inside the VGRS using the vehicle speed and steering angle information].) |
|
The DRS system do not operate. |
|
(Multi-media module receiver assembly) |
| Panel Control (Controls the selecting of the registers, temperature adjustment, etc. according to the operation of the remote start switches on the display.) |
|
|
The "Climate control system error. Please contact your dealer." screen appears. | U0073 (Multi-media module receiver assembly) |
| Clearance Sonar Setting / 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.) |
|
|
The "LEXUS Park Assist" icon which is displayed on the vehicle settings screen is cleared. |
(Multi-media module receiver assembly) |
| Eco Navigation Display (Displays the fuel consumption in 1 minute intervals, and displays the average fuel consumption history.) |
|
|
|
(Multi-media module receiver assembly) |
| HV Energy Flow Display (Displays energy flow screen which indicates state of drive force and regeneration.) |
|
If a communication failure occurs while the energy flow screen is displayed, the energy flow display turns off and the remaining charge in the auxiliary battery is used as the last value. |
|
U0293 (Multi-media module receiver assembly) |
| Rear View Monitor Control (Displays the guide lines based on the steering sensor, vehicle speed and vehicle information [whether the vehicle is 2WD or 4WD, the VGRS information, ARS information and long/short information].) |
|
|
|
(Multi-media module receiver assembly) |
| Destination Determination (Determines the destination based on the destination symbol and destination package information and selects the display language, time zone, etc.) |
|
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). | The time zone and language selection screens do not match the destination. | U0140 (Multi-media module receiver assembly) |
| Vehicle Diagnosis Recorder (Continuously records the status information from the control ECU and sensor information to the HDD in the EMV [AVN].) |
|
Records last received value to HDD every 500 milliseconds | Nothing | - |
| Remote Diagnosis Function (Uses the DCM to send diagnosis information to the service center.) |
|
3 retires are performed (including the first time). | When the DTC data is uploaded to the service center, it assigns an unresponsive status code to ECUs which do not respond. | U0073 (Multi-media module 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.) |
|
|
The customize options for items related to the ACN, BDB, IDT, DST and TAT ECU are not displayed or the settings cannot be saved. |
(Multi-media module receiver assembly) |
| Displays the navigation intersection guide information on the meter or HUD device. |
|
Nothing | Nothing | U0073 (Multi-media module receiver assembly) |
| Time Stamp Function (Matches the relative time from the main body ECU with the absolute time acquired from the GPS.) |
|
Nothing | Nothing |
(Multi-media module receiver assembly) |
| Rear View Monitor Control/CAN Compatible Rear Camera
|
|
Nothing | The screen does not change to the camera screen. | U0100 (Multi-media module receiver assembly) |
| Brake Hold Operation Control (Uses the brake hold operation signal to make driving regulation judgments for the currently viewed video mode.) |
|
If a communication malfunction occurs while video is displayed, the screen changes to the home screen. | If a communication malfunction occurs while video is displayed, control becomes the same as driving regulations. | U0129 (Multi-media module receiver assembly) |
| Meter-linked Function (Changes the display based on the customization information set on the meter. Outputs customization information set within the system itself.) |
|
Maintains the last valid state. | Nothing | - |
| 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.) |
|
|
Nothing | - |
| Entry and Start System
|
|
An entry unlock retry is performed. |
|
(Certification ECU [smart key ECU assembly]) |
| Entry and Start System
|
|
The previous value is maintained. |
|
U0293 (Certification ECU [smart key ECU assembly]) |
| Wireless Function (Operates the wireless lock/unlock functions, etc.) |
|
Nothing | When transmission is abnormal: Wireless lock/unlock and trunk functions do not operate. | - |
| Remote Engine Start Function (Requests for the immobiliser to be unset in response to data from the remote engine start ECU.) |
|
Nothing | The remote engine start does not operate. | U0142 (Certification ECU [smart key ECU assembly]) |
| Memory Function (Moves the seat and steering wheel to the recorded positions when an entry unlock or wireless unlock operation is performed.) |
|
Nothing |
|
U0142 (Certification ECU [smart key ECU assembly]) |
| Power Switch Illumination Control (Operates the power switch illumination in conjunction with the dome light illumination, etc.) |
|
|
|
U0142 (Certification ECU [smart key ECU assembly]) |
| Door Lock (Operates the lock and unlock [the key-linked function, key lock-in prevention function, automatic lock function, etc.].) |
|
|
Recognition not possible. |
(Main body ECU [multiplex network body ECU]) |
| Alarm (Sounds various warnings.) |
|
Nothing | Nothing |
(Main body ECU [multiplex network body ECU]) |
| Automatic Dimming of Display (Controls the display dimming.) |
|
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). | Nothing | U0155 (Main body ECU [multiplex network body ECU]) |
| Trunk Opener (Performs trunk open control [receives trunk open requests].) |
|
Prohibits opening the trunk. | Recognition not possible. |
(Main body ECU [multiplex network body ECU]) |
| Illumination (Performs illumination control.) |
|
|
The dome light does not turn off immediately after exiting the vehicle. |
(Main body ECU [multiplex network body ECU]) |
| Equipment Related (Controls gateway between the BERKES equipment and CAN.) |
|
|
The remote starter function does not operate. |
(Main body ECU [multiplex network body ECU]) |
| Seat and Mirror Control (Controls the memory function [the seat, steering wheel and mirror position adjustments].) |
|
|
Nothing |
(Main body ECU [multiplex network body ECU]) |
| Lighting Control (Controls the daytime running lights.) |
|
Daytime running light control is not performed. | Nothing | U0100 (Main body ECU [multiplex network body ECU]) |
| Tire Pressure Monitor Sensor (Monitors the tire pressure and meter speed, etc. and operates the meter indicators and multi-information display [gateway between BERKES and CAN].) |
|
Sends an initial communication value to BERKES. | The tire pressure monitor sensor indicator in the combination meter blinks for 1 minute and then stays illuminated. | U0155 (Main body ECU [multiplex network body ECU]) |
| Entry Beam (Detects oncoming traffic, vehicles ahead, street lights, etc. using an onboard sensor and automatically turns the high beam lights on and off.) |
|
The system does not operate (the indicator in the meter blinks). | "Check AFS" is displayed in the multi-information display. | U0182 (Main body ECU [multiplex network body ECU]) |
| Microcomputer Preset Steering
|
|
Nothing | The memory, recall, auto-return and auto-away functions do not operate. |
(Multiplex tilt and telescopic ECU) |
| Microcomputer Preset Driving Position System (Controls the seat position according to the operation conditions [main body ECU request, shift position and vehicle speed]. Controls the tilt and telescopic functions together with seat control.) |
|
|
|
(Position control ECU assembly RH) |
| Microcomputer Preset Position System (Controls the memory of the seat position according to vehicle information [power switch condition, shift position, door status and vehicle speed] and switch information [memory switch]). |
|
Memory control does not operate. | Memory control does not operate. |
(Position control ECU assembly LH) |
| Light Control (Controls the illumination of the lights based on courtesy switch information and interior light information.) |
|
|
|
U0142 (Front multiplex network door ECU LH, Front multiplex network door ECU RH) |
| Mirror Operation Control (Controls the operation of the outer mirrors based on mirror switch information from the BDB.) |
|
The mirrors do not operate manually. | The mirrors do not operate manually. | U0142 (Front multiplex network door ECU LH, Front multiplex network door ECU RH) |
| Mirror Heater Control (Controls the operation of the outer mirror heaters based on defogger switch information from the ACN.) |
|
The mirror heaters do not operate. | The mirror heaters do not operate. | U0142 (Front multiplex network door ECU LH, Front multiplex network door ECU RH) |
| Controls the electronic retraction operation of the outer mirrors based on mirror switch information from the BDB. |
|
The electronic mirror retraction function does not operate. | The electronic mirror retraction function does not operate. | - |
| Mirror Reverse Control (Controls the reverse operation of the outer mirrors based on reverse request information from the BDB.) |
|
The mirror reverse-linked operation does not operate. | The mirror reverse-linked operation does not operate. | - |
| Mirror Memorization and Recall Control (Memorizes and recalls the mirror position of the outer mirrors based on the memory request from the BDB.) |
|
|
|
- |
| Memory Switch Signal Substitute Transmission (Transmits the memory switch signal via CAN communication.) |
|
Nothing | The seat and mirror position memorization and recall functions do not operate. | - |
| Power Trunk Lid Automatic Open/Close Function (Automatically opens the trunk according to the trunk opener switch and operation conditions [power switch state, shift position, STP, parking brake state and vehicle speed]. Automatically closes the trunk using the power trunk lid close switch.) |
|
|
|
- |
| Luggage Opener Function (Opens the luggage compartment door according to the operating conditions and the operation of the luggage compartment door opening switch.) |
|
Does not operate the luggage compartment door opener function. | The luggage opener function does not operate. | - |
| Luggage Compartment Closer Function (Completely closes the trunk when it is ajar.) |
|
The function cannot reverse operation during the closer operation. | The function cannot reverse operation during the closer operation. | - |
| Courtesy Switch Signal Substitution Output Function (Sends a back door/luggage courtesy switch signal through the CAN bus.) |
|
Nothing | When the luggage compartment door opens, the indicator in the meter indicating the door is open does not illuminate (the BDB recomposes the signal and sends it to the MET). | - |
| Clearance Sonar Customize (Changes the clearance sonar settings when the user operates the display.) |
|
Nothing | Nothing | - |
| Shift Position Judgment (Receives shift position data which it uses for the clearance sonar detection operation conditions.) |
|
Changes to an operation state which is used when the shift lever is in P. | Nothing | U0101 (Clearance warning ECU assembly) |
| Vehicle Speed Determination (Receives vehicle speed data which it uses for the clearance sonar detection operation conditions.) |
|
Changes to an operation state which is used when the vehicle speed is 20 km/h (12.4 mph) or more. | Nothing | U0155 (Clearance warning ECU assembly) |
| Voice Warning Availability Confirmation (Uses the destination code and steering wheel information for determining the availability of the voice warning for the clearance sonar.) |
|
Assumes that there is no voice warning. | Nothing | - |
| Vehicle Local Time Synchronization (Receives the vehicle local time and uses it for synchronizing the local time of the clearance sonar.) |
|
Continues an independent count. | Nothing | - |
| TC DTC Output Service (While TC = ON is being received, a DTC is output in response to a request from the combination meter assembly.) |
|
When reception of the TC signal is lost during the TC service (TC = ON), this is regarded as TC = OFF and the TC service ends. | Nothing | - |
| Event Data Recorder (EDR) (Records conditions, such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the event data recorder recording conditions are met.) |
|
|
Nothing | - |
| Timestamp (Stores the timestamp information received from the main body ECU together with the DTC.) |
|
When a fail value is received or communication is determined to be lost, the count switches to the ECU internal unique count and the unique count identification information is set. | Nothing | - |
| Crash Detection Signal (Reports a crash in order to perform a fuel cut, etc. during a crash.) |
|
Nothing | Nothing | - |
| Passenger Side Air Conditioning Control (Sends information about the passenger in order to control the passenger side air conditioning according to whether there is a passenger in the passenger side seat.) |
|
Nothing | Nothing | - |
| Trigger Signal/Self Transmission (Outputs the yaw rate and acceleration sensor signal.) |
|
Sends yaw rate and acceleration sensor signals at fixed 0.12-second intervals. | Nothing | - |
| Blind Spot Monitor (Warns the driver when the system detects a vehicle in the blind spot of an outer mirror.) |
|
A DTC is stored and the blind spot monitor is disabled. | A warning is displayed on the multi-information display. |
(Blind spot monitor sensor RH) |
| Lost Communication Detection (The frames of the ECU connected to the global bus are monitored to detect for ECU communication failures.) |
|
Records the communication failure time. | Nothing | - |
| Dynamic Radar Cruise Control (Accelerates or decelerates the vehicle to maintain the distance to the vehicle ahead.) |
|
|
|
(Driving support ECU assembly) |
| Pre-crash Safety (Checks for obstacles, displays warnings and performs brake assist and brake control to avoid collisions.) |
|
Cancels the pre-crash brake assist, pre-crash warning buzzer and pre-crash brake control. |
|
(Driving support ECU assembly) |
| Lane Departure Alert System
|
|
|
|
(Forward recognition camera) |
| Automatic High Beam System (Function that recognizes lights in front of the vehicle and automatically operates the high beams.) |
|
The previous values are maintained. | Nothing |
(Forward recognition camera) |
| Road Sign Assist (Recognizes road signs and displays them on the meter.) |
|
Stops the system. |
|
(Forward recognition camera) |
| Pre-crash Safety (Function that recognizes vehicles and pedestrians and operates the brake.) |
|
Initializes the recognition processing result and sends it to the driving support ECU (unrecognized condition). |
|
(Forward recognition camera) |
| Speedometer (Displays the vehicle speed.) |
|
Only displays 0 (does not display the unit). | Nothing | - |
| Tachometer (Tachometer display) |
|
Performs control with engine speed as 0 rpm. | Nothing | U0100 (Combination meter mirror ECU) |
| HV System Indicator (Displays the HV system indicator.) |
|
Performs control using initial settings. | Nothing | - |
| Shift Display (Displays the shift position.) |
|
Does not display the shift position. | Nothing | - |
| Eco Driving Indicator (Displays the eco gauge.) |
|
Performs control with eco gauge not displayed. | Nothing | - |
| Speed Limit (Displays road signs using a camera.) |
|
Does not display road signs. | Nothing | - |
| Speed Limit (Displays speed limit signs according to the navigation system.) |
|
Maintains the last valid state. | Nothing | - |
| Pre-crash Safety (Pre-crash safety display) |
|
Maintains the last valid state. | Nothing | U1104 (Combination meter mirror ECU) |
| Cruise Control (Cruise system display) |
|
Does not display the cruise system. | Nothing | - |
| Lane Departure Alert System (Lane recognition display) |
|
Does not display white lines. | Nothing | U023A (Combination meter mirror ECU) |
| Audio Feedback (Audio operation display) |
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Maintains the last valid state. | Nothing | - |
| Turn-by-turn Display (Displays an arrow indicating the direction of travel.) |
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Does not display an arrow indicating the direction of travel. | Nothing | B150A (Combination meter mirror ECU) |
| Lane Guidance Display (Lanes display) |
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Does not display lanes. | Nothing | - |
| Eco Area Command (Switches eco area displays.) |
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Maintains the last valid state. | Nothing | - |
| Display ON/OFF Customization (Turns the screen on and off.) |
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Maintains the last valid state. | Nothing | - |
| SIL Indicator (Displays the gear shift indicator.) |
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Does not display the gear shift indicator. | Nothing | - |
| Shift Memory-linked (Controls the position of the combination meter mirror ECU.) |
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Performs control as if there is no request. | Nothing | - |
| Destination Determination (Determines the destination package.) |
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Maintains the last valid state. | Nothing | U0142 (Combination meter mirror ECU) |
| Leveling (Judges the vehicle driving condition from the vehicle speed data and calculates the pitch angle from the vehicle height sensor value using the pitch angle conversion formula to adjust the vertical beam axis of the headlights.) |
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Leveling control is stopped (beam axis position is stopped at position when malfunction was detected). | Nothing |
(Headlight light control ECU sub-assembly LH) |
| Leveling (Dynamic) (Judges the vehicle driving condition from the vehicle speed data and calculates the pitch angle from the vehicle height sensor value using the pitch angle conversion formula to adjust the vertical beam axis of the headlights.) |
|
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Nothing |
(Headlight light control ECU sub-assembly LH) |
| Leveling Indicator (Monitors leveling system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.) |
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The leveling indicator state is maintained. | Nothing |
(Headlight light control ECU sub-assembly LH) |
| Leveling Destination Judgment (Crosschecks the [stored] destination setting with the destination information from the CAN bus line.) |
|
Nothing | Nothing |
(Headlight light control ECU sub-assembly LH) |
| Cornering Light (Turns the cornering lights on and off according to the wheel speed, turn, steering angle and shift position data.) |
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Stops cornering light control. | Nothing |
(Headlight light control ECU sub-assembly LH) |
| Low beam, High beam, Clearance, Side Marker (Turns the specified light source on and off according to low beam, high beam, clearance light and side marker light command data.) |
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Forcibly illuminates the low beams, high beams, clearance lights and side marker lights. | Nothing |
(Headlight light control ECU sub-assembly LH) |
| LED Headlight Indicator (Monitors low beam LED malfunctions (short circuits) and when a malfunction is detected, sends an indicator illumination request to the meter.) |
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The LED headlight indicator status is maintained. | Nothing |
(Headlight light control 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 and IG data.) |
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Headlight cleaner operation is stopped. | Nothing | U0142 (Headlight light control ECU sub-assembly LH) |
| AHS (Controls the high beams based on the wheel speed, steering angle, shift position and camera data.) |
|
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Nothing |
(Headlight light control ECU sub-assembly LH) |
| AHS Indicator (Monitors AHS system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.) |
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Maintains the AHS indicator state. | Nothing |
(Headlight light control ECU sub-assembly LH) |
| Swivel (Adjusts the horizontal beam axis based on the wheel speed, steering angle and shift position.) |
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Operates with the beam axis facing forward. | Nothing |
(Headlight light control ECU sub-assembly LH) |
| AFS Indicator (Monitors AFS system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.) |
|
Maintains the AFS indicator state. | Nothing |
(Headlight light control ECU sub-assembly LH) |
ECB*: Electronically Controlled Brake System