CAN COMMUNICATION SYSTEM(for LHD) 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 System Related Fail-safe Operation Driver Detectable

      DTC Detection

      (ECU that stored DTC)

      Door Lock


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

      		 Main body ECU (multiplex network body ECU)

      • Combination meter assembly

      • ECM

      • While the engine switch on (IG), performs operations using the last information before the communication stop.

      • While the engine switch off, the key-linked operation is permitted.

      • The speed-sensitive auto-lock operation is prohibited.

      • The shift-linked auto-lock operation is prohibited.

      • The shift-linked auto-unlock operation is prohibited.

      • Auto lock switching is prohibited.

      		 -

      U0100

      U0101

      U0151

      U0155

      (Main body ECU (multiplex network body ECU))

      Display Automatic Dimming


      • Display dimming control.

      		 Main body ECU (multiplex network body ECU) Combination meter assembly Automatic dimming control for displays does not operate when taillights are turned on. -

      U0155

      (Main body ECU (multiplex network body ECU))

      Power Slide Door


      • Power slide door automatic opening function, wireless and entry one motion functions, and power slide door lock delay function.

      		 Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • Slide door motor unit LH

      • Slide door motor unit RH

      • The power slide door open control does not operate.

      • The power slide door one motion open control does not operate.

      • The power slide door delay function does not operate.

      		 -

      U0201

      U0202

      U0327

      (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

      • Back door motor unit

      • 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.

      		 -

      U0155

      U0230

      (Main body ECU (multiplex network body ECU))

      Light Control


      • Daytime running light control.

      		 Main body ECU (multiplex network body ECU) ECM The daytime running light control does not operate. -

      U0100

      (Main body ECU (multiplex network body ECU))

      Illumination


      • Performs illumination control.

      		 Main body ECU (multiplex network body ECU)

      • ECM

      • Certification ECU (smart key ECU assembly)

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

      U0327

      (Main body ECU (multiplex network body ECU))

      Seat and Mirror Control


      • Controls the memory function (the seat and mirror position adjustments).

      		 Main body ECU (multiplex network body ECU)

      • Front power seat switch LH

      • Outer mirror control ECU assembly (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      • Certification ECU (smart key ECU assembly)

      • Parking brake ECU assembly

      • Combination meter assembly

      • Commands the seat etc. to stop operating.

      • When recording the memory call, the operation stops due to a time out when waiting for the verification results.

      		 -

      U0120

      U0155

      U0199

      U0200

      U0208

      U0327

      U1106

      (Main body ECU (multiplex network body ECU))

      Automatic High Beam


      • Controls output of the high beam headlights when the automatic high beam sensor detects a preceding or oncoming vehicle.

      		 Main body ECU (multiplex network body ECU) Inner rear view mirror assembly Automatic high beam does not operate. Automatic high beam indicator light illuminates.

      U023A

      (Main body ECU (multiplex network body ECU))

      Entry Function/Wireless Function


      • Controls the entry function and wireless function.

      		 Certification ECU (smart key ECU assembly) Main body ECU (multiplex network body ECU) Entry lock/unlock control is not possible. -

      U0327

      (Main body ECU (multiplex network body ECU))

      Mirror Operation Control


      • Controls retract/return operation of the outer mirrors based on signals such as mirror switch signal from main body ECU (multiplex network body ECU).

      		 Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • Auto power retract/return mirror function does not operate (wireless-linked, entry-linked).

      • Mirror retract/return operation does not operate while the engine is cranking.

      		 -

      U0100

      U0327

      (Main body ECU (multiplex network body ECU))

      Accessories


      • Controls the accessory remote engine starter and accessory alarm.

      		 Main body ECU (multiplex network body ECU) Option connector (bus buffer ECU)

      • Remote engine starter does not operate.

      • Alarm operation stop.

      		 -

      U1117

      (Main body ECU (multiplex network body ECU))

      Static Parking Brake


      • Controls EPB* lock and release.

      		 Parking brake ECU assembly Skid control ECU (brake actuator assembly) During an acceleration sensor communication malfunction, the EPB* maintains the vehicle in a stopped position with the maximum possible braking force. The EPB* warning light illuminates.

      U0124

      (Parking brake ECU assembly)

      Dynamic Parking Brake


      • When the vehicle is in motion, stops the vehicle according to EPB* control.

      		 Parking brake ECU assembly Skid control ECU (brake actuator assembly) During a wheel speed sensor malfunction, the dynamic parking brake function does not operate. The EPB* warning light illuminates.

      U0129

      (Parking brake ECU assembly)

      Shift-linked Control


      • When the shift lever is moved to P, the parking brake operates. If the shift lever is moved to a position other than P, the parking brake is released.

      		 Parking brake ECU assembly ECM When there is a shift information communication malfunction, the shift-linked function is released and the EPB* can only be operated via the switch. The EPB* warning light illuminates.

      U0100

      (Parking brake ECU assembly)

      Electric water pump


      • Controls the electric water pump according to the request from the air conditioning amplifier assembly.

      		 ECM Air conditioning amplifier assembly The electric water pump operates in fail-safe mode. - -

      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.

      		 Power steering ECU assembly

      • ECM

      • Skid control ECU (brake actuator assembly)

      • Steering sensor

      • Airbag ECU assembly

      • 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 leaning is not performed.

      • The steering feel becomes worse (compensation control using the steering angle is stopped).

      		 The EPS warning light illuminates.

      U0100

      U0129

      (Power steering ECU assembly)

      Entry and Start Function


      • Entry lock/unlock and back door unlatch

      • Entry and start warnings

      • Entry illumination (dome light illumination, etc.)

      • Engine start possible display

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • An entry unlock retry is performed.

      • 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.

      • Entry illumination does not operate.

      • Engine start possible display does not operate

      • When the engine switch on (IG), the entry lock/unlock and back door unlatch operate.

      		 -

      U0100

      U0142

      U0155

      (Certification ECU (smart key ECU assembly))

      Wireless Function


      • Operates the wireless lock/unlock functions, etc.

      		 Main body ECU (multiplex network body ECU)

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • Wireless lock/unlock function do not operate.

      • When the engine switch on (IG), the wireless lock/unlock function operate.

      		 -

      U0142

      (Certification ECU (smart key ECU assembly))

      Memory Function


      • Moves the seat to the recorded positions when an entry unlock or wireless unlock operation is performed.

      		 Main body ECU (multiplex network body ECU)

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • The memory recall function does not operate.

      • The memory key registration does not operate.

      		 -

      U0142

      (Certification ECU (smart key ECU assembly))

      Engine Switch Lettering Illumination Control


      • Operates the engine switch lettering illumination in conjunction with the dome light illumination, etc.

      		 Certification ECU (smart key ECU assembly)

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • Combination meter assembly

      • If the engine switch letters are illuminated due to the dome light, the illumination turns off.

      • When the DC cut fuse is removed and the engine switch letters are illuminated due to the panel illumination, the illumination turns 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))

      ABS control


      • Helps prevent wheel lockup during sudden stops.

      		 Skid control ECU (brake actuator assembly) Airbag ECU assembly

      During control:


      • When back-up control (vehicle behavior stabilization) is complete, braking returns to operation and further control is prohibited.

      Not during control:


      • Control will not be started.

      • ABS warning light illuminates.

      • SLIP indicator light illuminates.

      • Brake hold operated indicator light blinks.

      U0073

      U0124

      (Skid control ECU (brake actuator assembly))

      VSC/TRC control


      • Suppresses vehicle instability, such as sliding sideways when cornering and wheel slippage when accelerating from rest.

      		 Skid control ECU (brake actuator assembly)

      • ECM

      • Steering sensor

      • Airbag ECU assembly

      During control:


      • When back-up control (vehicle behavior stabilization) is complete, braking returns to normal and further control is prohibited.

      Not during control:


      • Control will not be started.

      • SLIP indicator light illuminates.

      • Brake hold operated indicator light blinks.

      U0073

      U0100

      U0124

      U0126

      (Skid control ECU (brake actuator assembly))

      Hill-start Assist Control


      • With the vehicle stopped on a slope, maintains the brake oil pressure for 2 seconds when the brake pedal is released when starting off.

      		 Skid control ECU (brake actuator assembly)

      • ECM

      • Airbag ECU assembly

      • Steering sensor

      During control:


      • When backup control (depressurization control) is complete, hill-start assist control is prohibited.

      Not during control:


      • Control will not be started.

      • SLIP indicator light illuminates.

      • Brake hold operated indicator light blinks.

      U0073

      U0100

      (Skid control ECU (brake actuator assembly))

      During control:


      • When normal control is complete, hill-start assist control is prohibited.

      Not during control:


      • Control will not be started.

      • SLIP indicator light illuminates.

      • Brake hold operated indicator light blinks.

      U0124

      U0126

      (Skid control ECU (brake actuator assembly))

      Brake Hold Control


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

      		 Skid control ECU (brake actuator assembly)

      • Parking brake ECU assembly

      • Airbag ECU assembly

      • ECM

      • Steering sensor

      During control:


      • When brake oil pressure is applied, if the brake pedal is depressed after "Brake Hold Fault, Depress Brake to Deactive Visit Your Dealer" is displayed on the multi-information display, brake hold control is prohibited.

      Not during control:


      • Control will not be started.

      		 Brake hold operated indicator light blinks.

      U0073

      U0100

      U0128

      (Skid control ECU (brake actuator assembly))

      During control:


      • When normal control is complete, brake hold control is prohibited.

      Not during control:


      • Control will not be started.

      		 Brake hold operated indicator light blinks.

      U0124

      U0126

      (Skid control ECU (brake actuator assembly))

      Leveling


      • Adjust the vertical beam axis direction of the headlights according to the pitch angle calculated using the wheel speeds and vehicle height sensor value.

      		 Headlight light control ECU sub-assembly LH

      • Skid control ECU (brake actuator assembly)

      • Main body ECU (multiplex network body ECU)

      		 Leveling control stops (beam axis position is stopped at position when malfunction was detected). Displays messages on the multi-information display.

      U0129

      U0142

      (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 combination meter assembly.

      		 Headlight light control ECU sub-assembly LH Combination meter assembly Maintains the leveling indicator state. Displays messages on the multi-information display.

      U0155

      (Headlight light control ECU sub-assembly LH)

      Cornering Light


      • Turns the cornering light on and off according to the wheel speed, turn, steering angle and shift position data.

      		 Headlight light control ECU sub-assembly LH

      • Main body ECU (multiplex network body ECU)

      • Skid control ECU (brake actuator assembly)

      • Combination meter assembly

      • ECM

      • Steering sensor

      		 Stops cornering light control (cornering light turns off). -

      U0101

      U0126

      U0129

      U0142

      U0155

      (Headlight light control ECU sub-assembly LH)

      Low Beam, High Beam


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

      		 Main body ECU (multiplex network body ECU) Headlight light control ECU sub-assembly LH Forces the low beams to illuminate. Displays messages on the multi-information display.

      U0142

      (Headlight light control 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 combination meter assembly.

      		 Headlight light control ECU sub-assembly LH Combination meter assembly Maintains the LED headlight indicator status. Displays messages on the multi-information display.

      U0155

      (Headlight light control ECU sub-assembly LH)

      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.

      		 Front power seat switch LH

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      		 The memory system and memory call do not operate. - -

      Clearance light system


      • Illuminates and turns off the clearance light according to the clearance light request signal.

      		 Main body ECU (multiplex network body ECU) Headlight light control ECU sub-assembly LH Stops clearance light control and turns off the clearance light. -

      U0142

      (Outer mirror control ECU assembly (for driver side))

      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 (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      		 Main body ECU (multiplex network body ECU) The mirrors do not operate manually. -

      U0142

      (Outer mirror control ECU assembly (for driver side))

      U0142

      (Outer mirror control ECU assembly (for front passenger side))

      Mirror Heaters


      • Controls the operation of the mirror heaters based on signals such as the defogger switch signal from the air conditioning amplifier assembly.

      • Outer mirror control ECU assembly (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      • Main body ECU (multiplex network body ECU)

      • Air conditioning amplifier assembly

      		 The mirror heaters do not operate. -

      U0142

      (Outer mirror control ECU assembly (for driver side))

      U0142

      (Outer mirror control ECU assembly (for front passenger side))

      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 (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      		 Main body ECU (multiplex network body ECU) 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 (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      		 Main body ECU (multiplex network body ECU) The reverse shift-linked function does not operate. -

      U0142

      (Outer mirror control ECU assembly (for driver side))

      U0142

      (Outer mirror control ECU assembly (for front passenger side))

      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 (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      		 Main body ECU (multiplex network body ECU)

      • The mirror recall function does not operate.

      • The mirror memorization function does not operate.

      		 -

      U0142

      (Outer mirror control ECU assembly (for driver side))

      U0142

      (Outer mirror control ECU assembly (for front passenger side))

      Memory Switch Signal Substitute Transmission


      • Sends the memory switch signal via CAN communication.

      		 Main body ECU (multiplex network body ECU)

      • Outer mirror control ECU assembly (for driver side)

      • Outer mirror control ECU assembly (for front passenger side)

      		 The seat and mirror position memorization and recall functions do not operate. - -

      Interior illumination light brightness control


      • Illuminates, dims or turns off the interior illumination lights as set by the multi-information display.

      		 Room light control relay Combination meter assembly Current interior illumination light operation cannot be changed. - -

      Interior illumination light color control


      • Illuminates or changes the color of the interior illumination lights as set by the multi-information display.

      		 Room light control relay Combination meter assembly The color of the interior illumination lights cannot be changed or they cannot be illuminated. - -

      Function to link the interior illumination lights with vehicle status


      • Operates the interior lights according to the vehicle status such as engine switch status and door open/close status.

      		 Room light control relay Main body ECU (multiplex network body ECU) Interior illumination lights do not operate according to the vehicle status. - -

      Function to turn the interior illumination lights off when the engine switch is turned on (IG)


      • Turns off the interior illumination lights when the engine switch is turned on (IG).

      		 Room light control relay Main body ECU (multiplex network body ECU) Interior illumination lights that are illuminated while the engine switch is off do not turn off when the engine switch is turned on (IG). - -

      Lounge mode function


      • Uses the personal lights as atmospheric lights as set by the multi-information display.

      		 Room light control relay Combination meter assembly Lounge mode cannot be switched on. - -

      Function to turn off the personal lights


      • Turns off the personal lights as set by the multi-information display.

      		 Room light control relay Combination meter assembly Personal lights cannot be turned off. - -

      Function to link the personal lights with vehicle status


      • Illuminates or turns off the personal lights according to the vehicle status such as engine switch status and door open/close status.

      		 Room light control relay Main body ECU (multiplex network body ECU) Personal lights do not operate according to the vehicle status. - -

      Function to link the personal lights with dome switch ON


      • Illuminates the personal lights at 100% brightness when the dome switch is turned on.

      		 Room light control relay Main body ECU (multiplex network body ECU) Personal lights do not operate according to the dome switch on status. - -

      Function to disable the rear seat manual operation


      • Disables control by the illumination switch from the rear seat as set by the multi-information display on the combination meter assembly.

      		 Room light control relay

      • Combination meter assembly

      • Main body ECU (multiplex network body ECU)

      		 Enables control by the illumination switch from the rear seat as set by the multi-information display on the combination meter assembly. - -

      Battery saver control


      • Turns off the interior illumination lights or personal lights when the lights have been illuminated for 25 minutes or more

      		 Room light control relay Main body ECU (multiplex network body ECU) Battery saver control does not operate. - -

      Power Slide Door Automatic Opening/Closing Function


      • Automatically opens the power slide door when the control switch is operated.

      • Automatically closes the power slide door when the control switch is operated.

      • Slide door motor unit LH

      • Slide door motor unit RH

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Skid control ECU (brake actuator assembly)

      • Certification ECU (smart key ECU assembly)

      • Automatic opening/closing function does not operate.

      • Power slide door cannot be operated in the opposite direction while automatic opening/closing function is in operation.

      • Warning buzzer sound.

      		 - -

      Wireless One Motion Function


      • Automatically opens the power slide door when the transmitter switch is operated with the slide door locked.

      • Slide door motor unit LH

      • Slide door motor unit RH

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Skid control ECU (brake actuator assembly)

      • Certification ECU (smart key ECU assembly)

      		 Wireless one motion function does not operate. - -

      Entry One Motion Function


      • Automatically opens the power slide door when the outside power slide door switch is operated with the power slide door locked.

      • Slide door motor unit LH

      • Slide door motor unit RH

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Skid control ECU (brake actuator assembly)

      • Certification ECU (smart key ECU assembly)

      		 Entry one motion control does not operate. - -

      Welcome Power Slide Door Function


      • When the slide door is set to standby status using the key switch and the key is brought within an exterior detection area, the slide door unlocks and then automatically opens.

      • Slide door motor unit LH

      • Slide door motor unit RH

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Skid control ECU (brake actuator assembly)

      • Option connector (bus buffer ECU)

      		 Welcome power slide door does not operate. - -

      Driver seat switch operation function


      • Opens/closes the power back door when the driver seat switch is operated.

      		 Back door motor unit

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Option connector (bus buffer ECU)

      • Power back door opening operation is canceled and a buzzer sounds.

      • Power back door opening/closing operation does not operate.

      		 - -

      Wireless switch operation


      • Opens/closes the power back door and operates the wireless one motion by wireless switch operation.

      		 Back door motor unit

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Option connector (bus buffer ECU)

      • Power back door automatic open does not operate and cancel buzzer sounds.

      • Power back door automatic open/close does not operate.

      • Wireless one motion does not operate and a buzzer sounds.

      		 - -

      Back door handle operation


      • Opens the power back door when the back door handle is operated.

      		 Back door motor unit

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Option connector (bus buffer ECU)

      		 Power back door open does not operate. - -

      Hazard answer back function


      • Shows answer back by blinking hazard lights when power back door operation is started.

      		 Back door motor unit

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Option connector (bus buffer ECU)

      • Hazard answer back is delayed.

      • Hazard answer back does not operate.

      		 - -

      Buzzer answer back function


      • Shows answer back by sounding the buzzer when power back door operation is started.

      		 Back door motor unit

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Combination meter assembly

      • Option connector (bus buffer ECU)

      		 Buzzer answer back is delayed (when wireless one motion is operating). - -

      Electrical Load Control


      • Perform 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 the electrical load is not performed. - -

      Air Conditioning Cooperative Operation


      • Performs idle up according to compressor load.

      		 ECM Air conditioning amplifier assembly Air conditioning system does not use cooperative controls. - -

      PTC Heater


      • Performs idle up when there is a heat demand signal that requires operation of the PTC heater.

      		 ECM Air conditioning amplifier assembly

      • Engine idle speed changes.

      • Heating performance deteriorates.

      • PTC heater does not operate.

      		 - -

      Eco Driving Indicator


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

      		 ECM Combination meter assembly No information is displayed. - -

      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.

      • Charging control is not prohibited.

      		 - -

      Eco Control


      • Adjusts throttle response in consideration of actual fuel economy.

      		 ECM

      • Air conditioning amplifier assembly

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly

      		 Eco mode does not operate. - -

      Coast Downshift Timing Change According to Air Conditioning Load


      • Reduces engine load and performs idle up.

      		 ECM Air conditioning amplifier assembly

      • Coast downshift does not occur.

      • Coast downshift shock reduction performance deteriorates.

      		 - -

      Engine Start Control


      • Allows the engine to start by pressing the engine switch once (Cranking hold).

      		 Certification ECU (smart key ECU assembly) ECM Cranking is stopped when engine starting is judged based on an engine speed signal received via direct line. -

      U0100

      (Certification ECU (smart key ECU assembly))

      Automatic High Beam Control


      • (Controls high beams.)

      		 Inner rear view mirror assembly

      • Main body ECU (multiplex network body ECU)

      • ECM

      • Skid control ECU (brake actuator assembly)

      • ECM

      • Airbag ECU assembly

      		 Maintains the current conditions.

      • Automatic high beam indicator light blinks.

      • Displays messages on the multi-information display.

      B2461

      (Inner rear view mirror 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.

      • Corrects engine coolant temperature map and changes compressor lock judgment value.

      		 Air conditioning amplifier assembly ECM Control is performed based on default coolant temperature of 80°C (176°F). -

      U0100

      (Air conditioning amplifier assembly)

      Compressor Control


      • Judges compressor lock according to engine speed.

      		 Air conditioning amplifier assembly ECM Control is performed based on default engine speed of 0 rpm. -

      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 While the engine switch on (IG), previous values are maintained (during a reset, there is no load control). -

      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) While the engine switch on (IG), previous values are maintained (during a reset, dimming control is performed). -

      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) While the engine switch on (IG), previous values are maintained. -

      U0142

      (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) While the engine switch on (IG), previous values are maintained. -

      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 Control is performed based on default vehicle speed of 0 km/h (0 mph). -

      U0155

      (Air conditioning amplifier assembly)

      Air Conditioning Eco Mode Control


      • Eco-mode control is performed.

      		 Air conditioning amplifier assembly ECM While the engine switch on (IG), previous values are maintained (after a reset, the system stays in its normal state of operation). -

      U0101

      (Air conditioning amplifier assembly)

      Vehicle Speed Display


      • Displays the vehicle speed on the speedometer according to the vehicle speed signal from the skid control ECU (brake actuator assembly).

      • Speed Warning Display/Buzzer

      		 Combination meter assembly Skid control ECU (brake actuator assembly)

      • Speedometer is controlled based on a default vehicle speed of 0 km/h (0 mph).

      • Drive monitor calculation is stopped.

      		 -

      U0129

      (Combination meter assembly)

      Tachometer


      • Displays information on the tachometer.

      		 Combination meter assembly ECM

      • Tachometer is controlled based on a default vehicle speed of 0 rpm.

      • Drive monitor calculation is stopped.

      		 -

      U0100

      (Combination meter assembly)

      TRC OFF


      • Turns the TRC OFF light on and off.

      		 Combination meter assembly Skid control ECU (brake actuator assembly) While the engine switch on (IG), the current state is maintained. -

      U0129

      (Combination meter assembly)

      Destination


      • Determines the destination, etc.

      		 Combination meter assembly Main body ECU (multiplex network body ECU) - -

      U0142

      (Combination meter assembly)

      Fuel Gauge


      • Displays the fuel gauge fuel level.

      • Turns the remaining fuel amount warning on and off.

      		 Combination meter assembly

      • ECM

      • Skid control ECU (brake actuator assembly)

      • The fuel gauge displays the minimum value.

      • Calculation continues using a provisional value.

      • Drive monitor calculation is stopped.

      		 -

      U0100

      U0129

      (Combination meter assembly)

      Odometer and trip meter display


      • Displays the driving distance.

      		 Combination meter assembly Skid control ECU (brake actuator assembly) The last displayed value remains. -

      U0129

      (Combination meter assembly)

      Airbag


      • Turns the SRS warning light on and off.

      		 Combination meter assembly Airbag ECU assembly - The airbag warning light illuminates.

      U0151

      (Combination meter assembly)

      ABS Warning


      • Turns the ABS warning light on and off.

      		 Combination meter assembly Skid control ECU (brake actuator assembly) -

      • ABS warning light illuminates.

      • Displays messages on the multi-information display.

      U0129

      (Combination meter assembly)

      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 Skid control ECU (brake actuator assembly) -

      • Brake warning light illuminates.

      • Displays messages on the multi-information display.

      U0129

      (Combination meter assembly)

      SLIP Warning


      • Turns the SLIP warning light on and off.

      		 Combination meter assembly Skid control ECU (brake actuator assembly) - The SLIP indicator illuminates.

      U0129

      (Combination meter assembly)

      Electronic Power Steering Warning


      • Turns the electronic power steering warning light on and off.

      • Turns the electronic power steering warning buzzer on and off.

      • Turns the electronic power steering multi-information display on and off.

      		 Combination meter assembly Power steering ECU assembly -

      • EPS warning light illuminates.

      • Electronic power steering warning buzzer sound.

      • Displays messages on the multi-information display.

      U0131

      (Combination meter assembly)

      Headlight System


      • Turns operation and warning lights on/off.

      		 Combination meter assembly Headlight light control ECU sub-assembly LH - While the engine switch on (IG), the current state is maintained.

      U0182

      (Combination meter assembly)

      ECT/ENG System Display


      • Turns the temperature gauge command high engine coolant temperature warning display on and off.

      		 Combination meter assembly ECM -

      • Check engine warning light illuminates.

      • Displays messages on the multi-information display.

      U0100

      (Combination meter assembly)

      Multi-media-linked


      • Navigation system, audio and visual system, telephone, etc.

      		 Combination meter assembly

      • Navigation receiver assembly

      • Radio and display receiver assembly

      		 While the engine switch on (IG), the current state is maintained. -

      U0163

      (Combination meter assembly)

      ECO Drive Indicator


      • Controls ECO display.

      		 Combination meter assembly ECM ECO display is not displayed. -

      U0100

      (Combination meter assembly)

      ECO Display


      • Turns the ECO light on and off.

      		 Combination meter assembly ECM Turns the ECO light off. -

      U0100

      (Combination meter assembly)

      TPMS (Warning Light)


      • Turns the tire pressure warning light on and off.

      		 Combination meter assembly Main body ECU (multiplex network body ECU) - The TPMS warning light illuminates.

      U0142

      (Combination meter assembly)

      Clearance Sonar Settings/Notification


      • Controls the settings for the clearance sonar screen notifications which are set by touch switch operation, displays the sonar status and plays voice warnings.

      		 Navigation receiver assembly Clearance warning ECU assembly

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

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

      		 -

      U1110

      (Navigation receiver assembly)

      Eco Navigation Display


      • Displays the fuel consumption in 1 minute intervals, and displays the average fuel consumption history.

      		 Navigation receiver assembly

      • ECM

      • Skid control ECU (brake actuator assembly)

      • Combination meter assembly

      • 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.

      		 -

      U0100

      U0129

      U0155

      (Navigation receiver assembly)

      Parking Assist Monitor Control


      • Displays rear view monitor based on steering sensor, vehicle speed and vehicle information.

      		 Navigation receiver assembly Steering sensor

      • 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.

      		 -

      U0126

      (Navigation receiver assembly)

      Brake Hold Operation Control


      • Controls the Image ON signal according to the brake hold operation signal.

      		 Navigation receiver assembly Skid control ECU (brake actuator assembly) When a communication malfunction occurs while an image is being displayed, the screen returns to the basic operation screen. -

      U0129

      (Navigation receiver assembly)

      Destination Determination


      • Determines the destination based on the destination symbol and destination package information and selects the display language, time zone, etc.

      		 Navigation 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). -

      U0140

      (Navigation receiver assembly)

      Clearance Sonar Settings/Notification


      • Controls the settings for the clearance sonar screen notifications which are set by touch switch operation, displays the sonar status and plays voice warnings.

      		 Radio and display receiver assembly Clearance warning ECU assembly

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

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

      		 -

      U1110

      (Radio and display receiver assembly)

      Parking Assist Monitor Control


      • Displays rear view monitor based on steering sensor, vehicle speed and vehicle information.

      		 Radio and display receiver assembly Steering sensor

      • 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.

      		 -

      U0126

      (Radio and display receiver assembly)

      Brake Hold Operation Control


      • Controls the Image ON signal according to the brake hold operation signal.

      		 Radio and display receiver assembly Skid control ECU (brake actuator assembly) When a communication malfunction occurs while an image is being displayed, the screen returns to the basic operation screen. -

      U0129

      (Radio and display receiver assembly)

      Destination Determination


      • Determines the destination based on the destination symbol and destination package information and selects the display language, time zone, etc.

      		 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). -

      U0140

      (Radio and display receiver 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)

      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 or more. -

      U0155

      (Clearance warning ECU assembly)

      Panoramic View Monitor


      • Displays the bird's-eye view, back view, side view and front view of the vehicle on the multi-information display.

      • Displays guide lines on the panoramic view monitor screen.

      • Displays the detection area of the clearance sonar sensor.

      		 Parking assist ECU

      • ECM

      • Main body ECU (multiplex network body ECU)

      • Skid control ECU (brake actuator assembly)

      • Combination meter assembly

      • Steering sensor

      • Clearance warning ECU assembly

      		 Panoramic view monitor system does not operate. -

      U0073

      U0100

      U0126

      U0129

      U0140

      U1110

      (Parking assist ECU)

      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)

      • EPB*: Abbreviation for electric parking brake