Fail-Safe Chart [10/2022 - 11/2023]

• 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
• No. 2 skid control ECU (brake actuator assembly)

• Normal driving possible (regeneration is not performed)

When an ECU other than the No. 2 skid control ECU (brake actuator assembly) is not communicating:

• Normal driving possible

• MIL illuminates.
• Master warning light illuminates.

• Acquires information about passengers for deployment of SRS components.

• Brake warning light / red (malfunction) illuminates.
• Brake warning light/yellow (minor malfunction) illuminates.
• ABS warning light illuminates.
• Slip indicator light illuminates.
• Displays messages on the multi-information display.

• Displays vehicle condition and controls indicator lights.

• ECM
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Rack and pinion power steering gear assembly
• Main body ECU (multiplex network body ECU)
• Airbag sensor assembly
• Radio and display receiver assembly
• Air conditioning amplifier assembly
• Headlight ECU sub-assembly LH
• Multiplex network door ECU
• Blind spot monitor sensor LH
• Forward recognition camera
• Hybrid vehicle control ECU
• Clearance warning ECU assembly
• Certification ECU (smart key ECU assembly)

• 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.

• ECM
• Hybrid vehicle control ECU

• Determines whether the compressor is locked according to engine speed.
• Determines the engine status according to engine speed.

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

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

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

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

• 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.

• Entry lock/unlock, entry back door open.
• Warning
• Performs entry illumination (interior illumination etc.).
• Displays messages to inform the driver that it is possible to start the hybrid control system.

• ECM
• Main body ECU (multiplex network body ECU)
• Combination meter assembly

• Warning functions (key confinement, key not in vehicle, key reminder etc.) do not operate, engine start enabled display does not operate, key confinement prevention control does not operate.
• Entry lock/unlock or entry luggage compartment open does not operate.
• Entry illumination does not operate.
• The answer back function repeats a maximum of 3 times when an unlock operation is performed. However, only if the main body ECU (multiplex network body ECU) is able to receive a request from the certification ECU (smart key ECU assembly).
• Wrong entry warning is output.

• Operates the wireless lock/unlock functions, etc.

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

• When the power switch backlight is not illuminated:

  Does not illuminate.

• When the power switch backlight is illuminated:

  Does not turn off.

• Displays the immobiliser security condition.

• 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.

• Changes the power source mode using the power switch signal as a trigger and requests the hybrid system to start when conditions are met.

• Main body ECU (multiplex network body ECU)
• Combination meter assembly
• Hybrid vehicle control ECU

• Hybrid system start operation message is not displayed.
• Power switch indicator blinks in red.

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

• Yaw rate sensor
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Hybrid vehicle control ECU

• Displays messages on the multi-information display.
• BSM OFF indicator light illuminates.

• Outputs information regarding the detection of the headlights and tail lights of other vehicles by the forward recognition camera to the main body ECU (multiplex network body ECU).

• Yaw rate sensor
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Millimeter wave radar sensor assembly
• Hybrid vehicle control ECU

• Displays messages on the multi-information display.
• Automatic high beam indicator light illuminates.

• Sends shared calculations and detection results to each application inside the forward recognition camera.

• Yaw rate sensor
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Hybrid vehicle control ECU

• Performs control based on the signals received before the malfunction occurred.
• Detection is disabled.

• Alerts the driver of the possibility of lane departure and performs steering control to assist the vehicle in returning to the center of the road.

• Yaw rate sensor
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Rack and pinion power steering gear assembly
• Combination meter assembly
• Millimeter wave radar sensor assembly
• Hybrid vehicle control ECU

• Displays messages on the multi-information display.
• Lane departure alert/lane tracing assist indicator light (amber) illuminates.

• Helps center the vehicle in the lane using lane detection by the forward recognition camera.

• Performs pre-collision alarm control, pre-collision brake assist control and pre-collision brake control when an obstruction is detected.

• Yaw rate sensor
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Millimeter wave radar sensor assembly
• Hybrid vehicle control ECU

• Displays messages on the multi-information display.
• PCS warning light illuminates.

• Displays traffic signs on the multi-information display according to the traffic signs recognized by the forward recognition camera.

• Yaw rate sensor
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Combination meter assembly
• Hybrid vehicle control ECU

• Using the millimeter wave radar sensor assembly, yaw rate sensor, steering sensor, etc., detects the preceding vehicle and maintains a suitable distance by accelerating or braking, and maintains the set vehicle speed when no preceding vehicle is detected.

• Yaw rate sensor
• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Combination meter assembly
• Millimeter wave radar sensor assembly
• Hybrid vehicle control ECU

• Senses the preceding vehicle (measures distance) and outputs the result as target information (distance, side position, etc.).

• Displays messages on the multi-information display.
• PCS warning light illuminates.

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

• No. 2 skid control ECU (brake actuator assembly)
• Hybrid vehicle control ECU

• Assist force restricted.
• The steering feel becomes worse (compensation control using the steering angle is stopped).
• Zero point learning is not performed.

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

• Hybrid vehicle control ECU
• No. 2 skid control ECU (brake actuator assembly)

• Calculates the current to be used for the steering assist according to the command value from the No. 2 skid control ECU (brake actuator assembly), and then operates the motor.

• Calculates the current to be used for assist according to the commanded torque value from the forward recognition camera and then operates the motor.

• Steering sensor
• No. 2 skid control ECU (brake actuator assembly)
• Forward recognition camera

• Used for correction of the distance measured using the ultrasonic sensors.

• Judges the destination and uses the information for an operation condition for the app.
• Judges the handle position and uses the information for an operation condition for the app.

• Is used as an operation condition for the app.

• Judges the engine/transmission model and switches the control constant table.
• Is used as an operation condition for the app.
• Determines whether the vehicle is 2WD or AWD and switches the steering parameter table.
• Is used as an operation condition for the IPA app.

• Judges whether the engine is on or off.
• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the ICS.
• Is used as an operation condition for the clearance warning ECU assembly.

• Is used as an operation condition for the clearance warning ECU assembly.

Steering sensor Calculated Value

• Is used as an operation condition for the app.

VGRS Setting Availability Information

• Is used as an operation condition for the app.

• The wheel speed signal from each wheel (after 1/2 filter) is used to calculate the vehicle speed.

• Is used as an operation condition for the app.

During ABS Control

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Is used as an operation condition for the app.

• Calculates the amount of movement.

• Is used as an operation condition for the app.

• Displays the current vehicle speed.

• Vehicle speed displayed value: Displays 0.
• Vehicle speed unit: Is not displayed.

• Displays the current engine speed on the head up display using the engine speed signal sent from the engine.

• Adjusts the brightness of the display.

• Adjusts the rotation of the display.

• Displays the HV indicator on the head up display using the HV indicator signal sent from the hybrid vehicle control ECU.

• Displays the shift position.

• Displays traffic signs (such as speed limit signs) using the traffic sign signal sent from the forward recognition camera.

• Displays the road surface ice display mark and ambient temperature on the headup display using the ambient temperature signal sent from the air conditioning amplifier assembly.

• Displays an icon representing the preceding vehicle, set vehicle-to-vehicle distance and set speed.

• Displays the clearance sonar detection condition on the headup display using the clearance sonar display signal sent from the clearance warning ECU assembly.

• Displays the operation status of the parking support brake system.

• Displays the master caution icon and messages on the headup display using the master caution display signal sent from the combination meter assembly.

• Hides information icons and messages.

• Memorizes and recalls the headup display position in response to the seat position signal sent from the main body ECU (multiplex network body ECU).

• Switches the display content between on and off.

• Displays the BOS operation condition on the head up display using the BOS display signal sent from the engine.

• Displays the DSC operation condition on the head up display using the DSC display signal sent from the engine.

• Switches the language displayed on the head up display (multi-media-linked text) to match the language set by the radio and display receiver assembly.

• Switches the tachometer units and ambient temperature units according to the destination.

• Controls the illumination of the low beams, high beams, daytime running lights and clearance lights.

• Headlight ECU sub-assembly LH
• Headlight ECU sub-assembly RH

• High beams: Off (maintains previous value for 3 seconds after stopped).
• AFS: Operates with the beam axis facing forward.
• Adaptive high beam system: Stopped (maintains low beam).

• Judges swivel operation.

• Hybrid vehicle control ECU
• Steering sensor

• Judges leveling operation.
• Judges swivel operation.

• Dynamic headlight leveling: Continues control with the vehicle speed set to 0.
• AFS: Operates with the beam axis facing forward.

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

• Enables or disables each power door lock or unlock function in accordance with user operation.

• Locks or unlocks doors using the entry lock/unlock operation.

• Locks or unlocks doors using the entry lock/unlock operation.

• Sounds when the doors are locked/unlocked by wireless operation.

• Unlocks and unlatches the back door when the back door opener switch assembly is pushed and held with the back door locked.

• Prevents the washer nozzle from freezing due to low temperature.

• Memorizes and recalls memory switch.
• Memorizes and recalls memory call.

• Combination meter assembly
• Outer mirror control ECU assembly RH
• Outer mirror control ECU assembly LH
• Position control ECU assembly LH
• Certification ECU (smart key ECU assembly)
• No. 2 skid control ECU (brake actuator assembly)

• The seat, etc., are commanded to stop operating.
• Memory call registration: The operation is stopped due to timing out while waiting for the verification results.

• Illuminates when approaching any of the doors while holding an entry key.

• Dims the illumination of the instrument panel ambient illumination lights or ambient illumination lights when the vehicle starts driving.

• In the armed state, the alarm function judges break-in according to changes in door courtesy status and the alarm sounds.

• Hybrid vehicle control ECU
• Certification ECU (smart key ECU assembly)
• ECM

• After the vehicle is locked using wireless operation, pressing the push start switch before the alarm is set does not unset the alarm and, after a specified period of time, the alarm will be set.
• While in the alarm sounding state, the alarm is not canceled when the ignition switch is turned to ON (READY).
• When the alarm is sounding, the alarm is not canceled when the engine has been started.

• When it is determined that the vehicle is parked, stops sending illumination request signals and cuts power to the interior lights to avoid a depleted battery.

• Detects an open circuit or a malfunctioning ECU in the LED headlight system and informs the driver of the malfunction.

• ECM
• Hybrid vehicle control ECU

• When an LED headlight malfunction is detected, the LED headlight warning display is not displayed when the low beam headlights are turned on when the hybrid control system has been started.
• When an LED headlight malfunction is detected, the LED headlight warning display is not displayed when the low beam headlights are turned on when the ignition switch is turned to ON (READY).

• Determines whether it is daytime or nighttime based on the automatic light control sensor signals and, when it is determined that it is nighttime or dark, dims the meter illumination according to interior light illuminations and tail cancel switch state.

• Permits the power window to operate for 43 seconds after the ignition switch is turned off.

• ECM
• Hybrid vehicle control ECU

• Power window operation is not permitted even when the engine is started.
• Power window operation is not permitted even when the ignition switch is turned to ON (READY).

• Suggests that the driver turns the headlights on when the headlights are not illuminated while driving at night.

• Stops the wipers when a door is opened while the wipers are operating.

• Hybrid vehicle control ECU
• No. 2 skid control ECU (brake actuator assembly)

• When the ignition switch is turned to ON, the wipers are operating in AUTO mode and the shift lever is in P, even if the driver or passenger door is opened, the wipers do not stop.
• When the ignition switch is turned to ON, the wipers are operating in AUTO mode and the electric parking brake is locked, even if the driver or passenger door is opened, the wipers do not stop.

• Controls the high beam automatically when the forward recognition camera detects a preceding vehicle or an oncoming vehicle.

• Headlight ECU sub-assembly LH
• Forward recognition camera

• Judges that an object has been placed on a rear seat when a rear door is opened and closed.
• Provides a notification to prevent objects from being left in the rear seats when the driver exits the vehicle.

• ECM
• Hybrid vehicle control ECU

• Controls air conditioning functions.

• The air conditioning related indicators are turned off.
• If the set air temperature is displayed on an external display device, the set air temperature display is cleared.

• Sets the clearance sonar screen notification condition.

• Hybrid vehicle control ECU
• Clearance warning ECU assembly

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

• ECM
• No. 2 skid control ECU (brake actuator assembly)
• Combination meter assembly
• Hybrid vehicle control ECU

• Fuel consumption calculation cannot be started. After the calculated values are discarded and normal data is received, the 1-minute count is performed again.
• After the calculated values are discarded and normal data is received, the 1-minute count is performed again.

• Displays the rear camera view.

• Displays estimated course lines, width extension lines and distance guide lines on the image from the color rear view camera when the vehicle is driven in reverse.

• ECM
• Rear television camera assembly
• Hybrid vehicle control ECU

• Only when camera diagnostic mode is active, the multi-media display user or diagnostic screen is changed to (camera diagnostic screen is displayed).
• The temporary values for the reactive force setting completion notification and pointer coordinates are sent. The camera screen pattern is set to the temporary value and the reactive force setting operates as though the camera image is displayed.

• ECUs for the multiple camera system, etc.

• ECM
• Parking assist ECU
• Hybrid vehicle control ECU

• Only when camera diagnostic mode is active, the multi-media display user or diagnostic screen is changed to (camera diagnostic screen is displayed).
• Only when camera malfunction DTC C1610 is output, the current DTC (C1610) is cleared.
• The temporary values for the reactive force setting completion notification and pointer coordinates are sent. The camera screen pattern is set to the temporary value and the reactive force setting operates as though the camera image is displayed.

• Determines destination information (including steering wheel information), the driver/passenger seats, and uses it for the availability of the XM function.

• Predicts the road conditions based on the curve and inclination information and appropriately shifts gears according to the conditions set by the driver, etc.

• Automatically switches between fresh and recirculation modes based on information from the navigation indicating whether the vehicle is in a tunnel.

• Changes the behavior and control parameters of various functions. (illumination lighting time, etc.)

• Main body ECU (multiplex network body ECU)
• Air conditioning amplifier assembly
• Certification ECU (smart key ECU assembly)
• Position control ECU assembly LH

• When a phase 4 /phase 5 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.
• The entrance button is grayed out and cannot be selected when a communication stop occurs, even when customize information is received 1 or more times within 5 seconds after the engine switch is turned on (IG).
• Customization is performed for the applicable customization item according to diagnostic communication when customize information is not received within 5 seconds after the engine switch is turned on (IG).
• 3 retries are performed (including the first time).

• Displays the level of "Eco" driving.

• ECM
• No. 2 skid control ECU (brake actuator assembly)

• The eco level meter display is turned off when a communication stop occurs. New display data is generated and the function is restarted after the system returns to normal.
• The idling display is turned off when a communication stop occurs. New display data is generated and the function is restarted after the system returns to normal.
• Current trip data is discarded when a communication stop occurs. New trip data is generated and the function is restarted after the system returns to normal.
• The driving distance diagnostic function is stopped and all output information for that trip is discarded.
• The eco level meter display is turned off when a communication stop occurs. New display data is generated and the function is restarted after the system returns to normal.

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

• Linked language, unit and accent color: The last valid state is maintained.
• GS search: Control is performed as if there is an unconfirmed GS search request.
  • The last set value is maintained.
  • If the set item is displayed, it is grayed out so that the item cannot be changed.

• Receives flags from the forward recognition camera to operate the alarm and mutes multi-media audio while the alarm is in operation.
• Receives flags from the forward recognition camera to operate the alarm and mutes multi-media audio while the alarm is in operation.

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

• Outer mirror control ECU assembly LH
• Outer mirror control ECU assembly RH

• Controls the operation of the outer mirror heaters based on defogger switch 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)
• Air conditioning amplifier assembly

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

• Outer mirror control ECU assembly LH
• Outer mirror control ECU assembly RH

• 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

• Memorizes the mirror surface positions based on the memory request signal from the main body ECU (multiplex network body ECU) and adjusts the outer mirror surfaces to the memorized positions.

• Outer mirror control ECU assembly LH
• Outer mirror control ECU assembly RH

• Automatically opens the back door according to the operation conditions (power source mode, shift position, vehicle speed, lock position) and switch operation (driver seat/wireless).
• Automatically closes the back door according to the switch operation (driver seat/wireless).

• Hybrid vehicle control ECU
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Combination meter assembly
• Certification ECU (smart key ECU assembly)

• The automatic trunk open function is not operated.
• The automatic trunk close function cannot reverse operation during operation.

• If a wireless switch operation is performed with the doors locked, the back door is automatically opened.

• Hybrid vehicle control ECU
• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Combination meter assembly

• Opens the back door according to operation conditions (power source mode, vehicle speed, lock position) and the back door handle switch.

• Main body ECU (multiplex network body ECU)
• Combination meter assembly
• Certification ECU (smart key ECU assembly)

• Completely closes the back door when it is ajar.

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

• Enables the buzzer sound pressure, main switch, door fully open position and kick sensor to be customized using the combination meter.

• System which warns pedestrians, cyclists, etc. of the approaching EV/HEV vehicle by outputting an audible sound depending on various inputs such as vehicle speed, etc.

• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Hybrid vehicle control ECU

• The vehicle speed is set to 0 km/h. (Sound is not output based on vehicle speed.)
• The shift information is set to P. (Sound is not output.)

• Supplies Power.
• Displays the multimedia screen.
• Sets the reaction force pattern.

• Displays the vehicle path lines related to the steering angle.
• Controls the screen in accordance with the status of the back door.

• Steering sensor
• Rack and pinion power steering gear assembly
• Main body ECU (multiplex network body ECU)

• Parts of the guide lines are not displayed.
• Guide lines are not displayed.
• Some switch icons are grayed out.

• Changes the cornering characteristics pattern based on Gasoline Model/HV Model judgement.

• Changes the cornering characteristics pattern based on 2WD/4WD judgement.

• Changes the switch icon arrangement pattern based on the steering wheel information.

• Changes the display pattern based on the destination information.

• Supplies Power.
• Displays the image on the center display.

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

• Guide lines/cooperative display etc. are not displayed.
• Switch icons on the screen are grayed out.

• Changes the screen based on the vehicle speed.
• Changes the screen based on the shift position.
• Controls the screen based on the ABS.

• No. 2 skid control ECU (brake actuator assembly)
• Main body ECU (multiplex network body ECU)
• Hybrid vehicle control ECU

• Displays the vehicle path lines related to the steering angle.
• Controls the screen in accordance with the status of the back door.
• Adjusts the vehicle path lines in accordance with the mechanism.

• Steering sensor
• Rack and pinion power steering gear assembly
• Main body ECU (multiplex network body ECU)

• All guide lines for reversing are cleared.
• Switch icon to transition to guide line display mode is grayed out.

• Operates the screen using the voice recognition system.

• Changes the cornering characteristics pattern based on engine/HV judgement.

• Changes the cornering characteristics pattern based on 2WD/4WD judgement.

• Changes the screen control pattern based on AT/MT judgement.

• Changes the cornering characteristics pattern based on rack and pinion power steering gear assembly information.

• Changes the switch icon arrangement pattern based on the steering wheel information.