Power Source Network. Land Cruiser. Urj200, 202 Grj200 Vdj200
Networking. Land Cruiser. Urj200, 202 Grj200 Vdj200
Can Communication System (For Rhd Without Central Gateway Ecu) -- Fail-Safe Chart |
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 - Control Master
- System Related
- Control Actuator
Fail-safe Function System Behavior Indicator and Buzzer Behavior or User Notification DTC Detection
(ECU that stored DTC)Engine System Indicator Display - Estimates whether the injectors are clogged and requests that a message be displayed informing the user that the injectors need maintenance.
- Estimates whether the oil has deteriorated and displays a request to change the oil.
- ECM
- Combination meter assembly
- Combination meter assembly
- The combination meter display cannot be cleared for oil maintenance.
- There is no injector maintenance display.
- The system is unable to inform the user that the oil or an injector needs to be replaced.
- The combination meter display cannot be cleared.
- Electrical Load Control
(Idle up according to the electrical load is performed.)- ECM
- Air conditioning amplifier assembly, Main body ECU (multiplex network body ECU), Power steering ECU assembly
- ECM
Idle up according to the electrical load is not performed. The idling speed changes. - Air Conditioner - Performs idle up according to the compressor load.
- Performs air conditioning cut control.
- ECM
- Air conditioning amplifier assembly
- Air conditioning amplifier assembly
Air conditioning-linked control does not operate (cannot perform idle up). Air conditioner does not operate. - PTC Heater
(Performs idle up according to requests from the PTC heater [including the coolant heater] or heater system.)- ECM
- Air conditioning amplifier assembly
- ECM
The PTC heater does not operate (permission is not granted). - The PTC heater does not operate.
- The idling speed changes.
- There is degradation in heater performance.
- Eco Driving Indicator
(Displays information to the driver to encourage eco-driving.)- ECM
- -
- Combination meter assembly
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.)- ECM
- Master cylinder solenoid (skid control ECU), Spiral with sensor cable sub-assembly (steering angle sensor), , Airbag sensor assembly
- ECM
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.)- ECM
- Air conditioning amplifier assembly, Main body ECU (multiplex network body ECU)
- ECM
Eco mode does not operate. Eco mode does not operate. - ECT System Indicator
(Indicates the shift position, states of switches, system modes, etc.)- ECM
- Main body ECU (multiplex network body ECU)
- Combination meter assembly
Power/snow mode driving control cannot be performed. - Power/snow mode driving control cannot be performed.
- Indicator does not turn on.
- AI-SHIFT Control
(Controls the automatic transmission in order to improve engine braking power and acceleration feel.)- ECM
- Master cylinder solenoid (skid control ECU), Multi-media module receiver assembly
- ECM
AI-SHIFT control does not operate. Nothing - Coast Downshift
(Changes the coast downshift point based on the air conditioning load.)- ECM
- Air conditioning amplifier assembly
- ECM
Coast downshift does not operate. Coast downshift shock becomes stronger. - Heater Requested Upshift Delay
(Performs heater requested upshift delay.)Cruise Control
(Adjusts the engine throttle valve opening amount automatically to control the vehicle.)- ECM
- ECM, Combination meter assembly, Master cylinder solenoid (skid control ECU)
- ECM
Nothing - Radar cruise control does not operate when there is a problem with communication.
- The cruise control indicator blinks.
- TC DTC Output Service
(While TC = ON is being received from the ECM, a DTC is output in response to the request from the combination meter assembly.)- Combination meter assembly
- ECM
- Airbag sensor assembly
Changes to a separate count inside the ECU and sets separate count recognition information when it receives a fail value or communication stops. Nothing - Timestamp
(Records DTCs and timestamps received from the main body ECU.)- Airbag sensor assembly
- Main body ECU (multiplex network body ECU)
- -
Changes to a separate count inside the ECU and sets separate count recognition information when it receives a fail value or communication stops. 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.)- Airbag sensor assembly
- ECM, Master cylinder solenoid (skid control ECU), Combination meter assembly, Spiral with cable sensor sub-assembly (steering angle sensor)
- -
- An invalid value is recorded in the EDR.
- Maintains previous values
Nothing - Airbag Warning Light Control
(Sends airbag warning light illumination information.)- Combination meter assembly
- Airbag sensor assembly
- -
Nothing Nothing - Collision Detection Signal
(Notifies the system of a collision in order to perform fuel cut when a vehicle collision occurs.)- ECM
- Airbag sensor assembly
- -
Nothing Nothing - Seat Belt Warning Control
(Sends information about the passengers in order to turn the seat belt warning on and off.)- Combination meter assembly, Main body ECU (multiplex network body ECU)
- Airbag sensor assembly
- -
Nothing Nothing - Trigger Signal/Autonomous Transmission
(Outputs the yaw rate sensor signal.)- Airbag sensor assembly
- Master cylinder solenoid (skid control ECU)
- Master cylinder solenoid (skid control ECU)
The yaw rate sensor information signal is sent at regular intervals every 0.012 seconds. Nothing - Drive Data Recorder (DDR)
(Records conditions such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the drive data recorder recording conditions are met.)- Airbag sensor assembly
- ECM, Main body ECU (multiplex network body ECU), Master cylinder solenoid (skid control ECU), Combination meter assembly, Spiral with cable sensor sub-assembly (steering angle sensor)
- -
- An invalid value is recorded in the DDR.
- Maintains previous values
Nothing - Entry and Start System - Performs the entry lock/unlock, smart trunk open/unlatch operations.
- Operates the smart alarm.
- Operates the entry illumination (dome light illumination, etc.).
- Engine start possible display
- Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Combination meter assembly, Main body ECU (multiplex network body ECU)
An entry unlock retry is performed. - When communication is lost:
- The entry and start warnings (the key lock-in prevention warning, the leaving with the key warning, key reminder, etc.) and the key lock-in prevention function do not operate.
- The answer back function repeats a maximum of 3 times when an unlock operation is performed. However, this only occurs when the main body ECU (multiplex network body ECU) can receive requests from the certification ECU (smart key ECU assembly).
- When the ignition switch is ON, the entry lock/unlock and back door unlatch do not operate.
- When transmission is abnormal:
- The entry lock/unlock and entry trunk open/unlatch do not operate.
- The entry and start warnings (the key lock-in prevention warning, leaving with the key warning, key reminder, etc.) and the key lock-in prevention function do not operate.
- Entry illumination does not operate.
- U0142
- U0155
Entry and Start System - Performs the entry lock/unlock, smart trunk open/unlatch operations.
- Operates the smart alarm.
- Operates the entry illumination (dome light illumination, etc.).
- Engine start possible display
- Certification ECU (smart key ECU assembly)
- ECM
- Combination meter assembly
The previous value is maintained. Incorrect entry and start system warnings are output. U0100
(Certification ECU [smart key ECU assembly])Wireless Function
(Operates the wireless lock/unlock functions, etc.)- Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Main body ECU (multiplex network body ECU)
Nothing - Wireless lock/unlock and trunk functions do not operate.
- When the ignition switch is ON, the wireless lock/unlock/back open functions do not operate.
U0142
(Certification ECU [smart key ECU assembly])Remote Engine Start Function
(Requests for the immobiliser to be unset in response to data from the remote engine start ECU.)- Bus buffer ECU
- Certification ECU (smart key ECU assembly), Bus buffer ECU
- ECM
Nothing The remote engine start does not operate. - Memory Function
(Moves the seat and steering wheel to the recorded positions when an entry unlock or wireless unlock operation is performed.)- Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Multiplex tilt and telescopic ECU, Front power seat switch LH
Nothing - The memory system does not operate.
- Key registration does not operate.
U0142
(Certification ECU [smart key ECU assembly])Ignition Switch Illumination Control
(Operates the ignition switch illumination in conjunction with the dome light illumination, etc.)- Certification ECU (smart key ECU assembly)
- Combination meter assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly)
- When the ignition switch letters are illuminated due to the dome light, the illumination turns off.
- When the DC cut fuse is removed and the ignition switch letters are illuminated due to the panel illumination, the illumination turns off.
- The previous value is maintained.
- If the ignition switch letters are not illuminated, they never illuminate.
- If the ignition switch letters are illuminated due to the panel illumination, the illumination does not turn off.
- When the ignition switch letters are illuminated due to the dome light, the illumination does not turn off.
- When the DC cut fuse is removed and the ignition switch letters are illuminated due to the panel illumination, the illumination 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)
- Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly)
Nothing Unable to display security condition normally (illuminates during security warning preparation/security warning). U0142
(Certification ECU [smart key ECU assembly])Steering Sensor
(Detects the steering wheel angle.)- Spiral with sensor cable sub-assembly (steering angle sensor)
- Master cylinder solenoid (skid control ECU)
- -
STR1S01 (STS0=1) is periodically transmitted every 12 ms. Nothing - Engine Start 1
(Requests to release the immobiliser according to bidirectional communication with the certification ECU.)- Bus buffer ECU
- Certification ECU (smart key ECU assembly)
- Bus buffer ECU
Engine starting control is not possible. Unable to start engine with remote engine starter. - Engine Start 2
(Requests to turn the ACC and IG power supply on and off.)- Bus buffer ECU
- Certification ECU (smart key ECU assembly)
- Bus buffer ECU
Engine starting control is not possible. Unable to start engine with remote engine starter. - Vehicle Registration
(Requests to register the remote starter according to two-way communication with the certification ECU.)- Bus buffer ECU
- Certification ECU (smart key ECU assembly)
- Bus buffer ECU
Registration of remote start to vehicle not possible. No answer-back indicating registration to the vehicle completed. - Air Conditioning Control
(Requests automatic air conditioning and defogger control.)- Bus buffer ECU
- Air conditioning amplifier assembly
- Bus buffer ECU
During remote starter control, air conditioning control is not possible. Does not perform air conditioning control during remote starter control. - 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.)- Headlight leveling ECU assembly
- Master cylinder solenoid (skid control ECU), Main body ECU (multiplex network body ECU)
- -
Leveling control is stopped (beam axis position is stopped at position when malfunction was detected). Nothing - U0129
- U0132
- U0142
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.)- Headlight leveling ECU assembly
- Master cylinder solenoid (skid control ECU), Main body ECU (multiplex network body ECU), ECM
- -
- Control is performed as if the vehicle is parked even when the vehicle is being driven.
- Leveling control is stopped.
Nothing - U0073
- U0129
- U0142
- U1000
Leveling Indicator
(Monitors leveling system malfunctions and when a malfunction is detected, sends an indicator illumination request to the meter.)- Headlight leveling ECU assembly
- Headlight leveling ECU assembly
- Combination meter assembly
The leveling indicator state is maintained. Nothing - U0073
- U1000
Leveling Destination Judgment
Crosschecks the (stored) destination setting with the destination information from the CAN bus line.- Headlight leveling ECU assembly
- ECM, Main body ECU (multiplex network body ECU)
- Headlight leveling ECU assembly
Nothing Nothing - U0073
- U0100
- U0142
- U1000
Cleaner Output
(When the headlights are on, operates the headlight cleaner switch in conjunction with the front wiper switch and turns the dedicated cleaner relay on.)- Headlight leveling ECU assembly
- Main body ECU (multiplex network body ECU)
- Headlight leveling ECU assembly
- Operation is continued while the cleaner motor is in operation.
- Operation is prohibited while stopped.
Nothing U0142
(Headlight leveling ECU assembly)LED Headlight Indicator
(Monitors low beam LED malfunctions (short circuits) and when a malfunction is detected, sends an indicator illumination request to the meter.)- Headlight leveling ECU assembly
- Headlight leveling ECU assembly
- Combination meter assembly
The LED headlight indicator status is maintained. Nothing - U0073
- U1000
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.)- Headlight leveling ECU assembly
- Main body ECU (multiplex network body ECU)
- -
Headlight cleaner operation is stopped. Nothing U0142
(Headlight leveling ECU assembly)Panel Control
(Controls the selecting of the registers, temperature adjustment, etc. according to the operation of the touch panel switches on the display.)- Multi-media module receiver assembly
- Air conditioning amplifier assembly
- Air conditioning amplifier assembly
- Turns off any indicators related to the air conditioning system.
- If the set air temperature is displayed, the system clears the set air temperature display.
The "Climate control system error. Please contact your dealer." screen appears. - U0073
- U0164
Eco Navigation Display
(Displays the fuel consumption in 1 minute intervals, and displays the average fuel consumption history.)- Multi-media module receiver assembly
- ECM, Combination meter assembly, Master cylinder solenoid (skid control ECU)
- -
- Stops updating the fuel consumption displayed in 1 minute intervals on the eco navigation (eco drive) display (the graph of fuel consumption in 1 minute intervals that was displayed up until the point of the malfunction is not 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 distance to empty data is lost.
- The 1 minute fuel consumption graph on the eco navigation (eco drive) display is not updated for 1 minute or more.
- The most recent value for the fuel consumption interval 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.
- U0100
- U0129
- U0155
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 and long/short information].)- Multi-media module receiver assembly
- Spiral with sensor cable sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU), Steering control ECU, ECM, Headlight leveling ECU assembly, Power steering ECU assembly
- -
- 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.
- 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.
- U0100
- U0126
- U0130
- U0140
- U0182
Destination Determination
(Determines the destination based on the destination symbol and destination package information and selects the display language, time zone, etc.)- Multi-media module 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). The time zone and language selection screens do not match the destination. U0140
(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.)- Multi-media module receiver assembly
- Air conditioning amplifier assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU), Multiplex tilt and telescopic ECU, Front power seat switch LH
- -
- When a phase 4 remote communication usage application is performed (customize or remote diagnosis), the information is processed regardless of whether the main 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, IDT, DST and TAT ECU are not displayed or the settings cannot be saved. - U0073
- B15F5
- B15F6
- B15F7
- B15F8
ESPO
(Displays the level of "Eco" driving.)- Multi-media module receiver assembly
- Air conditioning amplifier assembly, ECM, Spiral with sensor cable sub-assembly (steering angle sensor), Master cylinder solenoid (skid control ECU), Main body ECU (multiplex network body ECU), Airbag sensor assembly
- -
Vehicle distance function and fuel consumption function are stopped and the output information for that trip is discarded. Nothing - Time Stamp Function
(Matches the relative time from the main body ECU with the absolute time acquired from the GPS.)- Main body ECU (multiplex network body ECU)
- Main body ECU (multiplex network body ECU)
- -
Nothing Nothing - U0073
- U0140
Tire Pressure Display
(Receives information from the tire pressure warning ECU and displays the tire pressure, tire position and system status.)- Main body ECU (multiplex network body ECU)
- Main body ECU (multiplex network body ECU)
- -
- The switch to enter the tire pressure screen is grayed out.
- If the tire pressure screen is being displayed, the tire pressure values are not displayed.
- The switch to enter the tire pressure screen is grayed out.
- If the tire pressure screen is being displayed, the tire pressure values are not displayed.
U0073
(Multi-media module receiver assembly)Meter-linked Function
(Changes display based on customization information set through the meter. Outputs the customization information set in the system.)- Multi-media module receiver assembly
- Combination meter assembly
- -
Maintains the last valid state. Nothing - Door Lock
(Operates the lock and unlock [the key-linked function, key lock-in prevention function, automatic lock function, etc.].)- Main body ECU (multiplex network body ECU)
- ECM, Combination meter assembly, Airbag sensor assembly
- Main body ECU (multiplex network body ECU)
- While the ignition switch is ON, the last information before the communication stop is used to perform control.
- While the ignition switch is ON, the key-linked operation is permitted.
- The speed-sensitive automatic door lock operation is prohibited.
- The shift-linked automatic door lock operation is prohibited.
- The shift-linked automatic door unlock operation is prohibited.
- Automatic door lock switching is prohibited.
Nothing - U0100
- U0101
- U0151
- U0155
Alarm
(Sounds various warnings.)- Main body ECU (multiplex network body ECU)
- ECM, Certification ECU (smart key ECU assembly), Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU)
Nothing Nothing - U0100
- U0120
- U0230
Automatic Dimming of Display
(Controls the display dimming.)- Main body ECU (multiplex network body ECU)
- Combination meter assembly
- Main body ECU (multiplex network body ECU)
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].)- Main body ECU (multiplex network body ECU)
- ECM, Combination meter assembly
- Main body ECU (multiplex network body ECU)
Prohibits opening the trunk. Nothing - U0100
- U0101
- U0155
Illumination
(Performs illumination control.)- Main body ECU (multiplex network body ECU)
- ECM, Certification ECU (smart key ECU assembly), Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU)
- The dome light is turned off.
- The door mirror foot light is turned off.
- The foot light is turned off.
The dome light does not turn off immediately after exiting the vehicle. - U0101
- U0230
- U0327
Seat and Mirror Control
(Controls the memory function [the seat, steering wheel and mirror position adjustments].)- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH, Multiplex tilt and telescopic ECU, Front power seat switch LH, Certification ECU (smart key ECU assembly), Combination meter assembly
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH, Multiplex tilt and telescopic ECU, Front power seat switch LH
- Commands the seat, tilt and telescopic, etc. to stop operating.
- Controls the memory function playback sequence.
- Controls the memory call function.
- Controls the return/away function.
- When recording the memory call, the operation stops due to a time out when waiting for the verification results.
Nothing - U0122
- U0155
- U0199
- U0200
- U0208
- U0327
- U1115
Diagnostic/C-BEST
(Diagnostic phase 4 communication.)- -
- All ECUs connected to CAN
- Main body ECU (multiplex network body ECU)
Exits diagnostic mode. Nothing - Entry and Start/Wireless
(Controls entry and start/wireless functions.)- Main body ECU (multiplex network body ECU)
- Certification ECU (smart key ECU assembly)
- Main body ECU (multiplex network body ECU)
Smart lock/unlock control is not possible. Nothing U0327
(Main body ECU [multiplex network body ECU])Lighting Control
(Controls the daytime running lights.)- Main body ECU (multiplex network body ECU)
- ECM
- Main body ECU (multiplex network body ECU)
Daytime running light control is not performed. Nothing U0100
(Main body ECU [multiplex network body ECU])Back Door Opener
(Performs back door opener control and power back door one motion open control.)- Main body ECU (multiplex network body ECU)
- Combination meter assembly, Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU)
- Back door opener control is prohibited.
- The back door operation start answer back (hazard warning light/buzzer) does not operate.
- The one motion power back door does not operate.
Nothing - U0155
- U0230
TPMS
(Monitors the tire pressure and meter speed, etc. and operates the meter indicators and multi-information display.)- Tire pressure warning ECU
- Combination meter assembly
- Combination meter assembly
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 on board sensor and automatically turns the high beam lights on and off.)- Main body ECU (multiplex network body ECU)
- Headlight leveling ECU assembly
- Main body ECU (multiplex network body ECU)
The system does not operate (the indicator in the meter blinks). The indicator in the meter blinks. - U0182
- U023A
Light Control (Light ECU)
(The light ECU controls the load around the headlights [body ECU sends illumination requests to the light ECU]).- Headlight leveling ECU assembly
- Main body ECU (multiplex network body ECU)
- Headlight leveling ECU assembly
Nothing Nothing U0182
(Main body ECU [multiplex network body ECU])Equipment Related
(Controls accessory remote starter and alarms.)- Main body ECU (multiplex network body ECU)
- Bus buffer ECU
- Main body ECU (multiplex network body ECU)
- Remote starter status is maintained until the ignition switch is turned off.
- Warning load output is stopped if a warning is in progress.
- Remote start function does not operate
- Alarm function does not operate
U1117
(Main body ECU [multiplex network body ECU])LED Headlight Warning
(Notifies the driver of an LED headlight malfunction when it detects an open circuit in the LED headlight, or an open circuit, ground fault or supply fault in the LED headlight driver.)- Main body ECU (multiplex network body ECU)
- ECM
- Main body ECU (multiplex network body ECU)
LED headlight warning control does not operate. Nothing U0100
(Main body ECU [multiplex network body ECU])Microcomputer Preset Steering - Automatically starts the auto-away and auto-return operations for the steering wheel according to a signal that indicates when the key is inserted or removed.
- Memorizes and recalls the selected driving position according to memory switch operation.
- Moves the steering wheel to the selected position according to manual switch operation on the steering column cover.
- Multiplex tilt and telescopic ECU
- Combination meter assembly, Certification ECU (smart key ECU assembly), Position control ECU assembly LH
- -
Nothing The memory, recall, auto-return and auto-away functions do not operate. - U0142
- U0208
- B2624
Light Control
(Controls the illumination of the lights based on courtesy switch information and interior light information.)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
The mirror puddle lights do not operate. The mirror puddle lights do not operate. - Mirror Operation Control
(Controls the operation of the outer mirrors according to the mirror switch information from the main body ECU [multiplex network body ECU], etc.)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
The mirrors do not operate manually. The mirrors do not operate manually. U0142
(Outer mirror control ECU assembly)Mirror Heater Control
(Controls the operation of the outer mirror heaters based on defogger switch information from the air conditioning amplifier assembly, etc.)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Air conditioning amplifier assembly, Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
The mirror heaters do not operate. The mirror heaters do not operate. U0142
(Outer mirror control ECU assembly)Outer Mirror Retraction Control
(Controls the electronic retraction operation of the outer mirrors according to the mirror switch information from the main body ECU [multiplex network body ECU], etc.)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
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 main body ECU [multiplex network body ECU].)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
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 main body ECU [multiplex network body ECU].)- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- The mirror recall function does not operate.
- The mirror memorization function does not operate.
- The mirror recall function does not operate.
- The mirror memorization function does not operate.
- Memory Switch Signal Substitute Transmission
(Transmits the memory switch signal via CAN communication.)- Main body ECU (multiplex network body ECU)
- Outer mirror control ECU assembly LH, Outer mirror control ECU assembly RH
- Main body ECU (multiplex network body ECU)
Nothing The seat and mirror position memorization and recall functions do not operate. - Microcomputer Preset Driving Position System - Controls the seat position according to the operation conditions [main body ECU (multiplex network body ECU] request, shift position and vehicle speed).
- Controls the tilt and telescopic functions together with seat control.
- Front power seat switch LH
- ECM, Combination meter assembly, Main body ECU (multiplex network body ECU), Multiplex tilt and telescopic ECU, Certification ECU (smart key ECU assembly)
- -
- The memory system, memory call and return away functions do not operate.
- The tilt and telescopic-linked function does not operate.
- The memory system, memory call and return away functions do not operate.
- The tilt and telescopic-linked function does not operate.
- Tire Air Pressure Monitor
(Identifies specific wheel equipped with transmitter that monitors tire air pressure.)- Tire pressure warning ECU
- Master cylinder solenoid (skid control ECU)
- Tire pressure warning ECU
Nothing Nothing U0129
(Tire pressure warning ECU)Automatic High Beam
(Controls the high beams.)- Inner rear view mirror assembly
- Main body ECU (multiplex network body ECU), ECM, Master cylinder solenoid (skid control ECU), Airbag sensor assembly
- -
The current conditions are maintained. Displays a message on the multi-information display. - Vehicle Speed Information Input
(Controls solenoid current (VFC solenoid) according to vehicle speed, steering angle, steering speed and engine speed.)- Power steering ECU assembly
- Master cylinder solenoid (skid control ECU)
- -
Power steering back-up control The PPS warning light illuminates. U0129
[Power steering ECU assembly]Steering Wheel Angle Information Input
(Controls solenoid current (VFC solenoid) according to vehicle speed, steering angle, steering speed and engine speed.)- Power steering ECU assembly
- Spiral with sensor cable sub-assembly (steering angle sensor)
- -
Power steering back-up control The PPS warning light illuminates. U0126
[Power steering ECU assembly]Engine Speed Information Input
(Controls solenoid current (VFC solenoid) according to vehicle speed, steering angle, steering speed and engine speed.)- Power steering ECU assembly
- ECM
- -
Power steering back-up control The PPS warning light illuminates. U0100
[Power steering ECU assembly]L4 Status Signal
(Controls solenoid current according to the vehicle speed and L4 status signal)- Power steering ECU assembly
- 4WD control ECU
- -
Normal control Nothing - Drive Mode Select Information
(Controls solenoid current according to drive mode switch information.)- Power steering ECU assembly
- ECM
- -
The previous values are maintained. Nothing - Customization Information
(Controls solenoid current to normal or sport mode via customization settings.)- Power steering ECU assembly
- Master cylinder solenoid (skid control ECU)
- -
The previous values are maintained. Nothing - VGRS Data Information
(Controls solenoid current according to VGRS information.)- Power steering ECU assembly
- Steering control ECU
- -
- Power steering back-up control
- The previous values are maintained.
The PPS warning light illuminates. U0130
[Power steering ECU assembly]Warning Light Information
(Controls PPS warning light illumination.)- Combination meter assembly
- Power steering ECU assembly
- -
The PPS warning light illuminates. The PPS warning light illuminates. - Power Back Door (Driver Seat Operation Switch Operation)
(Automatically operates (opens/closes) the power back door according to driver seat operation switch operation.)- Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU), ECM, Combination meter assembly, Bus buffer ECU
- -
- Opening operations are unavailable and the cancel buzzer sounds (always locked).
- Opening and closing operations are unavailable (driver side switch signal reception is unavailable).
- When the ignition switch is turned ON, the opening operation is unavailable and the cancel buzzer sounds.
- Opening operations are unavailable and the cancel buzzer sounds.
- Opening and closing operations are unavailable.
- Opening operations performed by turning the ignition switch ON are unavailable and the cancel buzzer sounds.
- When the engine is started, opening and closing operations are unavailable and the cancel buzzer sounds.
- U0101
- U0142
- U0155
- U1117
Power Back Door (Wireless Switch Operation) - Automatically operates (opens/closes) the power back door according to the wireless key switch.
- Operates (opens) the power back door by wireless one motion (customization setting).
- Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU), ECM, Combination meter assembly, Bus buffer ECU
- -
- Opening operations are unavailable and the cancel buzzer sounds (always locked).
- Opening and closing operations are unavailable (wireless signal reception is unavailable).
- Wireless one motion operation is unavailable and the cancel buzzer sounds.
- When the ignition switch is turned ON, the opening operation is unavailable and the cancel buzzer sounds.
- When the engine is started, opening and closing operations are unavailable and the cancel buzzer sounds.
- Opening operations are unavailable and the cancel buzzer sounds.
- Opening and closing operations are unavailable.
- Wireless one motion operation is unavailable and the cancel buzzer sounds.
- Opening operations performed by turning the ignition switch ON are unavailable and the cancel buzzer sounds.
- When the engine is started, opening and closing operations are unavailable and the cancel buzzer sounds.
- U0101
- U0142
- U0155
- U1117
Power Back Door (Handle Switch Operation)
(Operates (releases) the back door pop-up according to operation of the smart outside handle switch.)- Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU), ECM, Combination meter assembly, Bus buffer ECU
- -
Release operations are unavailable. - Release operations are unavailable.
- When the ignition switch is turned ON, release operations are unavailable.
- U0101
- U0142
- U0155
- U1117
Power Back Door (Hazard Answer Back)
(Flashes the hazard lights when the power back door starts operating.)- Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU), ECM, Combination meter assembly, Bus buffer ECU
- -
- Hazard answer back is delayed.
- The destination cannot be switched and hazard answer back does not operate.
- When the wireless one motion function is operating, the hazard answer back timing is delayed.
- Hazard answer back cannot be performed.
U0142
Power back door unit assembly (power back door ECU)Power Back Door (Buzzer Answer Back)
(Sounds the buzzer when the power back door starts operating.)- Power back door unit assembly (power back door ECU)
- Main body ECU (multiplex network body ECU), ECM, Combination meter assembly, Bus buffer ECU
- -
The buzzer answer back is delayed (when the wireless one motion function is operating). When the wireless one motion function is operating, the buzzer answer back timing is delayed. U0142
Power back door unit assembly (power back door ECU)Tailgate Closer Start Buzzer
(Sounds the power back door buzzer before the tailgate closer operates.)- Power back door unit assembly (power back door ECU)
- No. 2 main body ECU
- -
When the tailgate closer is operating, the buzzer cannot sound. When the tailgate closer is operating, the buzzer cannot sound. U0141
Power back door unit assembly (power back door ECU)Rear Wiper Function
(Performs low-speed operation, washer-linked operation, intermittent operation and reverse-linked control for the rear wipers.)- No. 2 main body ECU
- Main body ECU (multiplex network body ECU)
- No. 2 main body ECU
Rear wiper operation is possible regardless of whether the upper door is open or closed. Rear wiper operation is possible regardless of whether the upper door is open or closed. - Reverse-linked Rear Wiper Function
(Performs rear wiper reverse-linked control.)- No. 2 main body ECU
- ECM
- No. 2 main body ECU
Even if the shift lever is moved to R, the reverse-linked rear wiper does not operate. Even if the shift lever is moved to R, the reverse-linked rear wiper does not operate. - Lower Door Closer Function
(Fully closes the rear lower door when the door was closed (close operation) and releases the latch when the door is opened from the fully closed position (release operation).)- No. 2 main body ECU
- ECM, Combination meter assembly
- No. 2 main body ECU
Even if a release operation is performed, the closer release does not operate and the lower door latch does not release. Even if a release operation is performed, the closer release does not operate and the lower door latch does not release. - Lower Closer Operation Buzzer Sounding Function
(Sounds the buzzer when a full close operation is performed with the rear lower door closed.)- No. 2 main body ECU
- No. 2 main body ECU
- Power back door unit assembly (power back door ECU)
Nothing When the tailgate closer is operating, the buzzer cannot sound. - Inside Handle Illumination Function
(Performs fade-in or fade-out control when the inside handle illumination is illuminated, turned off or dimmed.)- No. 2 main body ECU
- Main body ECU (multiplex network body ECU)
- No. 2 main body ECU
The inside handle illumination does not illuminate or dim. The inside handle illumination does not illuminate or dim. - Step Illumination Function
(Performs fade-in or fade-out control when the step illumination is illuminated or turned off.)- No. 2 main body ECU
- Main body ECU (multiplex network body ECU)
- No. 2 main body ECU
The step illumination does not illuminate. The step illumination does not illuminate. - Washer Nozzle Heater Function
(Turns the washer nozzle heater on in low temperatures to prevent freezing.)- No. 2 main body ECU
- Air conditioning amplifier assembly
- No. 2 main body ECU
Maintains the on/off condition of the washer nozzle heater (maintains the last valid state before communication stop occurred). Maintains the on/off condition of the washer nozzle heater (maintains the last valid state before communication stop occurred). - 4WD Switching Control - 4WD control ECU
- ECM, Combination meter assembly, Bus buffer ECU
- 4WD control ECU
- 4WD switching may not be possible.
- Switching to the low range and center differential lock release condition may not be possible.
- The center differential lock operation indicator flashes.
- Switching to the low range and center differential lock release condition may not be possible.
- U0100
- U0122
- U0416
Air Conditioning Control
(Detects passengers.)- Air conditioning amplifier assembly
- Airbag sensor assembly, Combination meter assembly
- -
Performs control assuming passenger seat unoccupied. Nothing U0151
(Air conditioning amplifier assembly)Air Conditioning Control
(Controls the inlets and tunnel recirculation mode.)- Air conditioning amplifier assembly
- Multi-media module receiver assembly
- -
Does not detect tunnels or automatically switch the recirculation mode. Nothing - Air Conditioning Control
(Operates the air conditioning from the navigation screen.)- Air conditioning amplifier assembly
- Multi-media module receiver assembly
- -
Does not allow operation of the air conditioning from the navigation screen. Even if the air conditioning screen displayed on the navigation screen is operated, the system does not respond. U0163
(Air conditioning amplifier assembly)Air Conditioning Control
(Stores DTC information.)- Air conditioning amplifier assembly
- Main body ECU (multiplex network body ECU)
- -
Does not store the trip counter and time counter as fixed values. Nothing - Air Conditioning Control
(Controls indicator dimming.)- Air conditioning amplifier assembly
- Main body ECU (multiplex network body ECU)
- -
Maintains the last valid state. The air conditioning panel illumination does not automatically switch between dimmed and not dimmed. - Air Conditioning Control
(Controls the PTC heater.)- Air conditioning amplifier assembly
- Main body ECU (multiplex network body ECU)
- -
Maintains the last valid state. Nothing - Air Conditioning Control
(Performs destination, LH and RH judgment control.)- Air conditioning amplifier assembly
- Main body ECU (multiplex network body ECU)
- -
Maintains the last valid state. Nothing U0142
(Air conditioning amplifier assembly)Air Conditioning Control
(Performs correction based on sunlight amount.)- Air conditioning amplifier assembly
- Main body ECU (multiplex network body ECU)
- -
Performs control without correcting based on sunlight amount. Nothing - Air Conditioning Control
(Engine model judgment, engine speed detection and engine coolant temperature.)- Air conditioning amplifier assembly
- ECM
- -
- Maintains the last valid state.
- Performs control with engine speed as 0 rpm.
- Performs control with engine coolant temperature as 80°C (176°F).
Nothing U0100
(Air conditioning amplifier assembly)Air Conditioning Control
(Controls the PTC heater, viscous heater, simple electrical load and EFD detection.)- Air conditioning amplifier assembly
- ECM
- -
- Performs control with the actual PTC heater operation level as 0.
- Performs control as viscous heater turned off.
- Maintains the last valid state.
- Performs control with generator field duty value as 0%.
Nothing U0131
(Air conditioning amplifier assembly)Air Conditioning Control
(Performs vehicle speed compensation control.)- Air conditioning amplifier assembly
- Combination meter assembly
- -
Performs control with vehicle speed as 0 km/h (0 mph). Nothing U0155
(Air conditioning amplifier assembly)Air Conditioning Control
(Supports the remote engine start function.)- Air conditioning amplifier assembly
- Bus buffer ECU
- -
Performs control with vehicle as stopped. Nothing - Air Conditioning Control
(Air conditioning ECO control/customization-linked.)- Air conditioning amplifier assembly
- ECM, Multi-media module receiver assembly
- -
- Performs control with drive mode select condition as normal.
- Performs control as not operated.
Nothing - Vehicle Speed Display
(Displays the speedometer.)- Combination meter assembly
- Master cylinder solenoid (skid control ECU)
- -
Signal is considered to be 0. - The speedometer displays 0 km/h (0 mph).
- The drive monitor stops calculating.
U0129
(Combination meter assembly)Tachometer
(Displays the tachometer.)- Combination meter assembly
- ECM
- -
Signal is considered to be 0. - The tachometer displays 0 rpm.
- The drive monitor stops calculating.
U0100
(Combination meter assembly)Fuel Gauge - Displays the fuel gauge fuel level.
- Turns the remaining fuel amount warning on and off.
- Combination meter assembly
- ECM, Master cylinder solenoid (skid control ECU)
- -
Signal is considered to be 0. - Fuel gauge displays the minimum value.
- Calculation continues using a provisional value.
- The drive monitor stops calculating.
- U0100
- U0129
Coolant Temperature Gauge
(Displays the coolant temperature gauge.)- Combination meter assembly
- ECM
- -
Signal is considered to be 0. Sets the needle of the engine coolant temperature gauge at the C mark or below. - Oil Pressure Gauge
(Displays the oil pressure.)- Combination meter assembly
- ECM
- -
Signal is considered to be 0. Sets the needle of the oil pressure gauge at the L mark or below. U0100
(Combination meter assembly)ODO/TRIP Meter
(Calculates the ODO/TRIP values.)- Combination meter assembly
- Master cylinder solenoid (skid control ECU)
- -
Signal is considered to be 0. The last displayed value remains. U0129
(Combination meter assembly)A/T Reverse Buzzer
(Sounds the reverse buzzer.)- Combination meter assembly
- ECM
- -
Signal is considered to be 0. A/T reverse buzzer does not sound. U0100
(Combination meter assembly)Seat Belt Warning - Turns the seat belt warning light on and off.
- Turns the seat belt warning buzzer on and off.
- Combination meter assembly
- Main body ECU (multiplex network body ECU), Airbag sensor assembly, Master cylinder solenoid (skid control ECU)
- -
Signal is considered to be 0. - The seat belt warning light turns off.
- The seat belt warning buzzer does not sound.
- U0129
- U0151
Brake Warning - Turns the brake warning light on and off.
- Turns the brake system buzzer on and off.
- Turns the brake fluid warning light on and off.
- Turns the brake fluid warning buzzer on and off.
- Combination meter assembly
- Main body ECU (multiplex network body ECU), Master cylinder solenoid (skid control ECU)
- -
- Signal is considered to be "Active".
- While the ignition switch is ON, the current state is maintained.
The brake warning light illuminates. U0129
(Combination meter assembly)Ajar Warning - Turns the ajar warning buzzer on and off.
- Turns the ajar warning light on and off.
- Combination meter assembly
- Main body ECU (multiplex network body ECU), Master cylinder solenoid (skid control ECU)
- -
- Signal is considered to be "Active".
- While the ignition switch is ON, the current state is maintained.
- The ajar warning light turns off.
- The ajar warning light turns off.
U0129
(Combination meter assembly)PPS Warning
(Turns the PPS warning light on and off.)- Combination meter assembly
- Power steering ECU assembly
- -
Signal is considered to be "Active". The PPS warning light illuminates. U0131
(Combination meter assembly)Lane Departure Alert
(Displays and hides lane departure alerts.)- Combination meter assembly
- Forward recognition camera
- -
Signal is considered to be "Active". A malfunction notification message is displayed. U023A
(Combination meter assembly)Pre-collision
(Displays and hides the pre-collision function.)- Combination meter assembly
- Driving support ECU assembly
- -
Signal is considered to be "Active". A malfunction notification message is displayed. U1104
(Combination meter assembly)Brake Override - Turns the brake override light on and off.)
- Turns the brake override light on and off.)
- Combination meter assembly
- ECM
- -
Signal is considered to be "Active". - The brake override light illuminates.
- A malfunction notification message is displayed.
- Driver Monitor
(Displays and hides the driver monitor.)- Combination meter assembly
- ECM, Master cylinder solenoid (skid control ECU)
- -
Signal is considered to be 0. The drive monitor stops calculating. - U0100
- U0129
Soft Switch - Combination meter assembly
- Driving support ECU assembly, Forward recognition camera, Blind spot monitor sensor RH
- -
Signal is considered to be "Active". The soft switch is not displayed. U023A
(Combination meter assembly)Multi-media-linked - Combination meter assembly
- Multi-media module receiver assembly
- -
While the ignition switch is ON, the current state is maintained. Nothing U0163
(Combination meter assembly)- Control Master