CAN COMMUNICATION SYSTEM FAIL-SAFE CHART


  1. FAIL-SAFE FUNCTION


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

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

      Function

      Control Master

      (Main ECU to determine controls)

      		 System Related Fail-safe Operation Driver Detectable

      DTC Detection

      (ECU that stored DTC)

      Air Conditioning Control


      • Assists with passing signals between the air conditioning amplifier assembly and air conditioning inverter.

      		 Hybrid vehicle control ECU Air conditioning amplifier assembly Air conditioning control is limited. MIL illuminates.

      U016487

      (Hybrid vehicle control ECU)

      Regenerative Operation


      • Provides maximum amount of regeneration based on cooperative control with the ECB system.

      		 Hybrid vehicle control ECU Brake booster with master cylinder assembly Normal driving MIL illuminates.

      U117087

      (Hybrid vehicle control ECU)

      Drive Torque Control


      • Controls the engine, generator (MG1) and motor (MG2) based on engine information received.

      		 Hybrid vehicle control ECU ECM

      • Reduced output power

      • Driving range is limited

      • Engine always stopped

      		 MIL illuminates.

      U010087

      (Hybrid vehicle control ECU)

      Drive Torque Control


      • Controls the generator (MG1) and motor (MG2).

      		 Hybrid vehicle control ECU Inverter with converter assembly Normal driving -

      U011087

      (Hybrid vehicle control ECU)

      Drive Torque Control


      • Controls the ECB.

      • Cruise Control.

      		 Hybrid vehicle control ECU Brake booster with master cylinder assembly Normal driving -

      U012987

      (Hybrid vehicle control ECU)

      Vehicle Damage Determination


      • Determines whether there was a collision according to the airbag signal.

      		 Hybrid vehicle control ECU Airbag sensor assembly Normal driving -

      U015187

      (Hybrid vehicle control ECU)

      Motor/Generator Control


      • Controls the motor and generator by calculating the optimum voltage and current based on the requested torque value and the rotation angles of the motor and generator.

      • Inverter with converter assembly

      • Hybrid vehicle control ECU

      • ECM

      • Hybrid vehicle control ECU

      • Brake booster with master cylinder assembly

      • When the brake booster with master cylinder assembly is not communicating:

        Normal driving possible (regeneration is not performed)

      • When an ECU other than the brake booster with master cylinder assembly is not communicating:

        Normal driving possible

      • Master warning light turns on.

      • MIL illuminates.

      U010087

      U029387

      U117087

      (Inverter with converter assembly)

      Static Braking


      • When the vehicle is stopped, the parking brake electronically operates to hold the vehicle in place when the driver operates the switch.

      		 Parking brake ECU assembly Brake booster with master cylinder assembly It cannot be determined whether the vehicle is stopped or not (there is no effect on this function). The electric parking brake warning light illuminates.

      U0073

      U0129

      (Parking brake ECU assembly)

      Dynamic Parking Brake


      • Slows down the moving vehicle with the parking brake. Braking power is only effective while pressing the switch. Once the switch is released, the parking brake is automatically released.

      		 Parking brake ECU assembly Brake booster with master cylinder assembly It cannot be determined whether the vehicle is stopped or not (there is no effect on this function). The electric parking brake warning light illuminates.

      U0073

      U0129

      (Parking brake ECU assembly)

      Shift-linked Function


      • When the shift lever is moved to P, the electric parking brake automatically operates. If the shift lever is moved to D, N or R, the electric parking brake is automatically released.

      		 Parking brake ECU assembly

      • Brake booster with master cylinder assembly

      • Airbag sensor assembly

      • ECM

      • Hybrid vehicle control ECU

      		 The shift-linked function is prohibited.

      • The electric parking brake warning light illuminates.

      • When the vehicle starts off, the vehicle may feel a slight drag due to the parking brake being released late.

      U0073

      U0100

      U0124

      U0129

      U0293

      (Parking brake ECU assembly)

      Brake Hold Function


      • Prevents the vehicle from moving when the brake pedal is released while the vehicle is stopped. Automatically operates the electric parking brake according to requests from the skid control ECU.

      		 Parking brake ECU assembly Brake booster with master cylinder assembly Brake hold control is prohibited.

      • When transmission is lost:


        • Brake hold control is prohibited before brake fluid pressure is applied.

        • While brake fluid pressure is applied, if the brake pedal is depressed after "Depress the brake pedal" is displayed on the multi-information display, brake hold control is prohibited.


      • When communication is lost:


        • The electric parking brake warning light illuminates.

        • When the fail-safe function is operating (during a brake problem), the parking brake operation becomes delayed. The electric parking brake warning light illuminates.

      U0073

      U0129

      (Parking brake ECU assembly)
      ABS control Brake booster with master cylinder assembly Airbag sensor assembly

      When control is being performed:


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

      When control is not being performed:


      • Control will not be started.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake warning light (red) illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (yellow) illuminates.

      U0073

      U0123

      U0124

      (Brake booster with master cylinder assembly)
      VSC/TRC/VDIM control Brake booster with master cylinder assembly

      • Hybrid vehicle control ECU

      • Steering sensor

      • Airbag sensor assembly

      • Power steering ECU assembly

      When control is being performed:


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

      When control is not being performed:


      • Control will not be started.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (red) illuminates.

      • Brake warning light (yellow) illuminates.

      U0073

      U0123

      U0124

      U0126

      U0293

      (Brake booster with master cylinder assembly)

      Hill-start Assist Control


      • Maintains the brake hydraulic pressure to the 4 wheels for 2 seconds with the brake pedal released when starting off on an uphill.

      		 Brake booster with master cylinder assembly

      • Hybrid vehicle control ECU assembly

      • Steering sensor

      • Airbag sensor assembly

      When control is being performed:


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

      When control is not being performed:


      • Control will not be started.

      • Brake warning light (red) illuminates.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (yellow) illuminates.

      U0073

      U0123

      U0124

      U0126

      U0293

      (Brake booster with master cylinder assembly)

      Hybrid Vehicle Regenerative Brake Coordinated Control


      • Performs regenerative brake coordinated control with the hybrid control system.

      		 Brake booster with master cylinder assembly

      • Hybrid vehicle control ECU

      • Airbag sensor assembly

      • Certification ECU (smart key ECU assembly)

      During control:


      • When normal control is complete, hybrid vehicle regenerative brake coordinated 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.

      • Brake warning light (yellow) illuminates.

      U0123

      U0124

      (Brake booster with master cylinder assembly)

      During control:


      • Control is continued with previous values and then the brake pedal control amount is gradually changed. Then, hybrid vehicle regenerative brake coordinated control is prohibited.

      Not during control:


      • Control will not be started.

      • Brake warning light (red) illuminates.

      • ABS warning light illuminates.

      • SLIP indicator light illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (yellow) illuminates.

      U0073

      U0120

      U0293

      (Brake booster with master cylinder assembly)

      Brake Hold Control


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

      		 Brake booster with master cylinder assembly

      • Airbag sensor assembly

      • Parking brake ECU assembly

      • Hybrid vehicle control ECU

      When control is being performed:


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

      When control is not being performed:


      • Control will not be started.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (yellow) illuminates.

      U0123

      U0124

      (Brake booster with master cylinder assembly)

      When control is being performed:


      • A message is displayed on the multi-information display and brake hold control is canceled when the brake pedal is depressed.

      When control is not being performed:


      • Control will not be started.

      • Brake warning light (red) illuminates.

      • ABS warning light illuminates.

      • SLIP indicator illuminates.

      • Brake hold operated indicator light blinks.

      • Brake warning light (yellow) illuminates.

      U0073

      U0128

      U0293

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

      U0129

      (Combination meter assembly)
      Hybrid System Indicator Display Combination meter assembly Hybrid vehicle control ECU Needle of hybrid system indicator remains at 201. -

      U0100

      (Combination meter assembly)

      Meter Display


      • Displays vehicle condition and controls indicator lights.

      		 Combination meter assembly

      • Power steering ECU assembly

      • Airbag sensor assembly

      • Brake booster with master cylinder assembly

      • ECM

      • Forward recognition camera

      • Headlight ECU sub-assembly LH

      • Vehicle information is not displayed.

      • Lights do not illuminate or lights remain illuminated.

      		 -

      U0100

      U0129

      U0131

      U0151

      U0182

      (Combination meter assembly)

      Air Conditioning Control


      • Corrects engine speed, such as for idle up.

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

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

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

      U0293

      (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 power switch is 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 power switch is 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 power switch is 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).

      • Correction level for displayed ambient temperature declines.

      • Correction level for outlet airflow declines.

      U0155

      (Air conditioning amplifier assembly)

      Solar Calibration Control


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

      		 Air conditioning amplifier assembly Main body ECU (multiplex network body ECU) While the power switch is on (IG), previous values are maintained. -

      U0142

      (Air conditioning amplifier assembly)

      Blind Spot Monitor Control


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

      		 Blind spot monitor sensor LH

      • Steering sensor

      • Brake booster with master cylinder assembly

      • Main body ECU (multiplex network body ECU)

      • Hybrid vehicle control ECU

      		 - Displays messages on the multi-information display.

      U0126

      U0129

      U0142

      U0293

      (Blind spot monitor sensor LH)

      Grille Shutter Opening or Closing Operation Control


      • Opens or closes the grille shutter.

      		 Swing grille actuator assembly

      • ECM

      • Hybrid vehicle control ECU

      		 Grille shutter opening operation is performed and further grille shutter operation is prohibited. - -

      LDA System


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

      		 Forward recognition camera

      • Hybrid vehicle control ECU

      • ECM

      • Steering sensor

      • Brake booster with master cylinder assembly

      • Power steering ECU assembly

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly

      • Millimeter wave radar sensor assembly

      		 Control stops.

      • Displays messages on the multi-information display.

      • Buzzer sounds.

      U0100

      U0123

      U0126

      U0129

      U0131

      U0142

      U0155

      U0235

      U023A

      U0293

      (Forward recognition camera)

      Automatic High Beam Function


      • High Beam Light Distribution Control

      		 Forward recognition camera

      • ECM

      • Main body ECU (multiplex network body ECU)

      • Steering sensor

      • Brake booster with master cylinder assembly

      • Hybrid vehicle control ECU

      		 The current state is maintained.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      B124B

      (Main body ECU (multiplex network body ECU))

      Road Sign Assist Function


      • Road Sign Assist

      		 Forward recognition camera

      • Brake booster with master cylinder assembly

      • Airbag sensor assembly

      		 Road sign assist function is canceled.

      • Master warning light illuminates.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0123

      U0129

      (Forward recognition camera)

      Dynamic Radar Cruise Control System


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

      		 Millimeter wave radar sensor assembly

      • Brake booster with master cylinder assembly

      • Airbag sensor assembly

      • ECM

      • Hybrid vehicle control ECU

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

      U0100

      U0125

      U0126

      U0129

      U0293

      (Millimeter wave radar sensor assembly)

      Pre-collision System


      • Controls the brakes immediately before a crash.

      		 Millimeter wave radar sensor assembly

      • ECM

      • Forward recognition camera

      • Brake booster with master cylinder assembly

      • Steering sensor

      • Hybrid vehicle control ECU

      • Airbag sensor assembly

      		 Control stops.

      • Displays messages on the multi-information display.

      • Buzzer Sounds.

      U0125

      U0126

      U0129

      U0235

      U023A

      U0293

      U1002

      (Millimeter wave radar sensor assembly)

      Entry Function


      • Entry lock/unlock and back door unlatch

      • Warning

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

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

      • Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • Main body ECU (multiplex network body ECU)

      • Combination meter assembly

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

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

      • Entry illumination does not operate.

      		 -

      U0100

      U0142

      U0155

      (Certification ECU (smart key ECU assembly))

      Wireless Function


      • Operates the wireless lock/unlock functions, etc.

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

      U0142

      (Certification ECU (smart key ECU assembly))

      Power Switch Backlighting Control


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

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

      • When the power switch backlight is not illuminated:

        Does not illuminate.

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

        Does not turn off.

      		 -

      U0142

      (Certification ECU (smart key ECU assembly))

      Security Indicator Display Function


      • Displays the immobiliser security condition.

      		 Certification ECU (smart key ECU assembly)

      • Main body ECU (multiplex network body ECU)

      • Hybrid vehicle control ECU

      • Security condition cannot display normally (illuminates during security warning preparation/security warning).

      • Entry and start warning cannot display normally.


        • When the hybrid control system is activated, the message to show how to activate the hybrid control system does not turn off immediately.

        • When the hybrid control system is activated, the low key battery warning is not displayed.

      		 -

      U0142

      U0293

      (Certification ECU (smart key ECU assembly))

      Air Conditioning Control


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

      		 Radio and display receiver assembly Air conditioning amplifier assembly

      • Air conditioning system indicators turn off.

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

      		 Displays messages on the multi-information display.

      U0073

      U0164

      (Radio and display receiver assembly)

      Fuel Consumption Display


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

      		 Radio and display receiver assembly

      • ECM

      • Brake booster with master cylinder assembly

      • Combination meter assembly

      • Hybrid vehicle control ECU

      When communication with ECM, brake booster with master cylinder assembly or hybrid vehicle control ECU is interrupted:


      • Display is not updated.

      When communication with combination meter assembly is interrupted:


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

      • Numeric part of driveable mileage is cleared.

      		 -

      U0100

      U0129

      U0155

      U0293

      (Radio and display receiver assembly)

      HV Energy Flow Display


      • Creates energy flow screen which indicates regeneration status and drive force transmission status.

      		 Radio and display receiver assembly Hybrid vehicle control ECU If communication stops while the energy flow screen is displayed, the energy flow display disappears and the latest value is maintained for the SOC (state of charge) level display. -

      U0293

      (Radio and display receiver assembly)

      Destination Identification


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

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

      U0140

      (Radio and display receiver assembly)

      Vehicle Customize Function


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

      		 Radio and display receiver assembly

      • Main body ECU (multiplex network body ECU)

      • Air conditioning amplifier assembly

      • Certification ECU (smart key ECU assembly)

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

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

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

      • U0073

      • B15F5

      • B15F6

      • B15F7

      (Radio and display receiver assembly)

      Meter-linked Function


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

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

      Information Sound Adjustment Function


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

      		 Radio and display receiver assembly

      • Forward recognition camera

      • Clearance warning ECU assembly

      		 Audio mute is canceled. - -

      Tire Pressure Monitoring System


      • Receives information from TPMS ECU to display air pressure, tire location and system status.

      		 Main body ECU (multiplex network body ECU) Radio and display receiver assembly

      • When the current tire pressure screen is not displayed: The switch to enter the current tire pressure screen is grayed out.

      • When the current tire pressure screen is displayed: The tire pressure values are not displayed.

      		 -

      U0073

      (Radio and display receiver assembly)

      Rear View Monitor System


      • Displays images from the rear view camera.

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

      U0100

      (Radio and display receiver assembly)

      Display Dimming Control


      • Dims the parking assist pre support switch assembly indicator.

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

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

      • When communication is interrupted while the power switch is on (IG), control is performed based on the latest information.

      		 -

      U0142

      (Clearance warning ECU assembly)

      Shift position judgment


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

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

      U0101

      (Clearance warning ECU assembly)

      Vehicle speed judgment


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

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

      U0155

      (Clearance warning ECU assembly)

      Distance Correction


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

      		 Clearance warning ECU assembly Air conditioning amplifier assembly

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

      • Simple intelligent parking assist system operation is canceled.

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

      U0164

      (Clearance warning ECU assembly)

      Hybrid System Status Check


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

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

      U0293

      (Clearance warning ECU assembly)

      Brake Status Judgment


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

      		 Clearance warning ECU assembly Brake booster with master cylinder assembly When communication is interrupted, simple intelligent parking assist system operation is canceled. -

      U0129

      (Clearance warning ECU assembly)

      Steering Wheel Control


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

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

      U0126

      U0131

      (Clearance warning ECU assembly)

      Side Turn Signal Check


      • Checks side turn signal status and decides detection direction.

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

      U0155

      (Clearance warning ECU assembly)

      Moving Backward Judgment


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

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

      U0151

      (Clearance warning ECU assembly)

      Mute switch judgment


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

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

      U0155

      (Clearance warning ECU assembly)

      Power Steering Control


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

      		 Power steering ECU assembly

      • ECM

      • Hybrid vehicle control ECU

      • Brake booster with master cylinder assembly

      • Airbag sensor assembly

      • Steering sensor

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

      • Zero point learning is not performed.

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

      		 EPS warning light illuminates.

      U0100

      U0129

      U0293

      (Power steering ECU assembly)

      Assist Map Selection


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

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

      C1581

      (Power steering ECU assembly)

      VDIMα System


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

      		 Power steering ECU assembly Brake booster with master cylinder assembly VDIMα control is stopped. -

      U0129

      (Power steering ECU assembly)

      Engine/Hybrid Toggle


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

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

      U0293

      (Power steering ECU assembly)

      GRS ECU


      • Cooperative control between the swing grille actuator assembly and ECM.

      		 ECM Swing grille actuator assembly The grille shutter is kept fully open. MIL illuminates.

      U028487

      (ECM)

      MG ECU


      • Cooperative control between the inverter with converter assembly and ECM.

      		 ECM Inverter with converter assembly Engine is stopped. MIL illuminates.

      U011087

      (ECM)

      HV ECU


      • Cooperative control between the hybrid vehicle control ECU and ECM.

      		 ECM Hybrid vehicle control ECU Engine is stopped. MIL illuminates.

      U029387

      U129387

      (ECM)

      Headlight Leveling Control (Headlight Control)


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

      		 Headlight ECU sub-assembly LH

      • Brake booster with master cylinder assembly

      • Main body ECU (multiplex network body ECU)

      		 Control stops. -

      U0129

      U0142

      (Headlight ECU sub-assembly LH)

      Destination Identification


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

      		 Headlight ECU sub-assembly LH

      • ECM

      • Main body ECU (multiplex network body ECU)

      		 - -

      U0100

      U0142

      (Headlight ECU sub-assembly LH)

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


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

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

      U0142

      (Headlight ECU sub-assembly LH)

      LED Headlight Indicator


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

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

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0073

      U1000

      (Headlight ECU sub-assembly LH)

      Headlight Cleaner Signal Output


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

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

      U0142

      (Headlight ECU sub-assembly LH)

      Door Lock


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

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

      U0151

      (Main body ECU (multiplex network body ECU))

      Alarm


      • Sounds various warnings.

      		 Main body ECU (multiplex network body ECU)

      • ECM

      • Hybrid vehicle control ECU

      • Certification ECU (smart key ECU assembly)

      		 - -

      U0100

      U0120

      U0293

      (Main body ECU (multiplex network body ECU))

      Automatic Dimming of Display


      • Controls display dimming control.

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

      U0155

      (Main body ECU (multiplex network body ECU))

      Illumination


      • Performs illumination control.

      		 Main body ECU (multiplex network body ECU)

      • Certification ECU (smart key ECU assembly)

      • ECM

      • The dome light turns off.

      • The outside handle illumination turns off.

      • The foot light is adjusted.

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

      U0101

      U0327

      (Main body ECU (multiplex network body ECU))

      Diagnostic/C-BEST


      • Diagnostic phase 4 communication.

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

      Entry and Start Function/Wireless


      • Controls entry and start function/wireless functions.

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

      U0327

      (Main body ECU (multiplex network body ECU))

      Lighting Control


      • Controls the daytime running lights

      		 Main body ECU (multiplex network body ECU)

      • ECM

      • Hybrid vehicle control ECU

      • Parking brake ECU assembly

      		 Daytime running light control is not performed. -

      U0100

      U0293

      U1106

      (Main body ECU (multiplex network body ECU))

      TPMS


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

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

      U0155

      (Main body ECU (multiplex network body ECU))

      Automatic High Beam


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

      		 Main body ECU (multiplex network body ECU)

      • Headlight ECU sub-assembly LH

      • Forward recognition camera

      		 The system does not operate.

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0182

      U023A

      (Main body ECU (multiplex network body ECU))

      Lighting Control


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

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

      • Buzzer sounds.

      • Displays messages on the multi-information display.

      U0182

      (Main body ECU (multiplex network body ECU))

      Lighting Control


      • European headlight auto-cut

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

      U0129

      (Main body ECU (multiplex network body ECU))