CAN COMMUNICATION SYSTEM(for LHD) FAIL-SAFE CHART

  1. FAIL-SAFE FUNCTION

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

    2. Effects on each system when communication is impossible (for further details, see the pages for each system).

      Function

      1. Control Master

      2. System Related

      3. Control Actuator

      Behavior during CAN Failure

      Vehicle Behavior

      Indicator and Buzzer

      Diagnostic Trouble Code

      Electrical Load Control

      (Performs idle up according to the electrical load.)

      1. ECM

      2. Main body ECU (multiplex network body ECU), Air conditioning amplifier assembly, Power steering ECU assembly

      3. ECM

      Idle up according to the electrical load is not performed.

      The idling speed changes.

      -

      Air Conditioning-linked Control

      (Performs idle up according to the compressor load. Performs air conditioning cut control.)

      1. ECM

      2. Air conditioning amplifier assembly

      3. Air conditioning amplifier assembly

      Air conditioning-linked control does not operate (cannot perform idle up).

      Air conditioning does not operate.

      -

      PTC Heater

      (Performs idle up according to requests from the PTC heater [including coolant heater] or heater system.)

      1. ECM

      2. Air conditioning amplifier assembly

      3. ECM

      The PTC heater does not operate (permission is not granted).

      • When there is a transmission stop or when the bus is continuously detected:

      • The PTC heater does not operate.

      • When there is a reception stop:

      • The idling speed changes.

      • Heater performance becomes worse.

      • The PTC heater does not operate.

      -

      Eco-drive Indicator

      (Displays information to the driver to encourage eco-driving.)

      1. ECM

      2. -

      3. Combination meter assembly

      Nothing

      No information is displayed.

      -

      Integrated Control

      (Estimates the driver requested torque based on the accelerator pedal operation and performs torque characteristic control according to driving conditions so that drivability, acceleration performance and acceleration feeling are improved.)

      1. ECM

      2. Brake booster with master cylinder assembly (skid control ECU), Power steering ECU assembly, Spiral with sensor cable sub-assembly (steering angle sensor)

      3. ECM

      Does not estimate the driver requested torque based on the accelerator pedal operation and does not perform torque characteristic control according to driving conditions and as a result, drivability, acceleration performance and acceleration feeling are not improved.

      Does not estimate the driver requested torque based on the accelerator pedal operation and does not perform torque characteristic control according to driving conditions and as a result, drivability, acceleration performance and acceleration feeling are not improved.

      -

      ECT System Indicator

      (Displays shift, switch and mode information to the meter.)

      1. ECM

      2. Main body ECU (multiplex network body ECU)

      3. Combination meter assembly

      Nothing

      ECT system indicators do not illuminate.

      -

      Cruise Control

      (Adjusts the engine throttle valve opening amount automatically to control the vehicle.)

      1. ECM

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. ECM

      Cruise control does not operate.

      • The cruise indicator do not illuminate.

      • Displays messages on the multi-information display.

      U0122

      Air Conditioner

      • The idle up engine speed, etc. is calibrated.

      • Adjusts the air temperature, airflow mode and airflow volume according to the engine coolant temperature.

      • Engine coolant temperature map calibration and compressor judgment value switching based on engine type.

      1. Air conditioning amplifier assembly

      2. Hybrid vehicle control ECU

      3. -

      • While the power switch is on (IG), control is performed with the engine coolant temperature set to the default value of 80°C (176°F).

      • While the power switch is on (IG), control is performed with the default setting for the engine type (the default setting depends on the vehicle type).

      Nothing

      U0293

      Simple Load Control

      (Limits simple electrical load control according to the load control level.)

      1. Air conditioning amplifier assembly

      2. Power steering ECU assembly

      3. -

      • When the power switch is on (IG): Previous values are maintained (during a reset, dimming control is performed).

      • When the power switch is not on (IG): Nothing

      Nothing

      U0131

      Panel Dimming Control

      (Outputs dimming information to the LIN panel according to the display dimming information.)

      1. Air conditioning amplifier assembly

      2. Main body ECU (multiplex network body ECU)

      3. -

      • When the power switch is on (IG): Maintains previous values.

      • When the power switch is not on (IG): Nothing

      Cannot switch between dimming states.

      U0142

      Destination Determination Control

      (Switches air conditioning control pattern according to destination information.)

      1. Air conditioning amplifier assembly

      2. Main body ECU (multiplex network body ECU)

      3. -

      • When the power switch is on (IG): Maintains previous values.

      • When the power switch is not on (IG): Nothing

      Nothing

      U0142

      Remote Start Control

      (Controls the air conditioning operation state according to remote start information.)

      1. Air conditioning amplifier assembly

      2. Main body ECU (multiplex network body ECU)

      3. -

      • When the power switch is on (IG): Remote start control is not performed.

      • When the power switch is not on (IG): Nothing

      • When the power switch is on (IG): The air conditioning system does not begin operation according to the remote start information.

      • When the power switch is not on (IG): Nothing

      -

      Outside Temperature Compensation Control

      (Changes the air conditioning system operation state and adjusts the outside temperature display value according to the vehicle information.)

      1. Air conditioning amplifier assembly

      2. Combination meter assembly

      3. -

      • When the power switch is on (IG): Control is performed with the vehicle speed set at the default value (0 km/h [0 mph]).

      • When the power switch is not on (IG): Nothing

      • When the power switch is on (IG):

        • The reliability of the outside temperature value shown decreases.

        • The system is not able to adjust the air conditioning airflow volume correctly.

      • When the power switch is not on (IG): Nothing

      U0155

      Air Conditioning Eco Control

      (Eco-mode control is performed.)

      1. Air conditioning amplifier assembly

      2. Hybrid vehicle control ECU

      3. -

      While the power switch is on (IG), previous values are maintained (after a reset, the system stays in its normal state of operation).

      Nothing

      -

      Door Lock

      (Operates the lock and unlock [the key-linked function, key lock-in prevention function, etc.].)

      1. Main body ECU (multiplex network body ECU)

      2. ECM, Combination meter assembly, Airbag sensor assembly

      3. Main body ECU (multiplex network body ECU)

      • When the power switch on (IG): Maintains previous values.

      • When the power switch is off: The key-linked operation is permitted.

      Nothing

      U0155

      Automatic Dimming of Display

      (Controls the display dimming.)

      1. Main body ECU (multiplex network body ECU)

      2. Combination meter assembly

      3. Main body ECU (multiplex network body ECU)

      Automatically performs display dimming control when tail mode is not canceled (when the light sensor illuminance signal value is less than the display dimming value, the interior displays and indicators are dimmed).

      Nothing

      U0155

      Illumination

      (Performs illumination control.)

      1. Main body ECU (multiplex network body ECU)

      2. Certification ECU (smart key ECU assembly)

      3. Main body ECU (multiplex network body ECU)

      The dome light is turned off.

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

      U0327

      Equipment Related

      (Controls gateway between the BERKES equipment and CAN.)

      1. Main body ECU (multiplex network body ECU)

      2. Combination meter assembly, ECM, Hybrid vehicle control ECU, Air conditioning amplifier assembly

      3. Air conditioning amplifier assembly

      Sends an initial communication value to the BERKES.

      The remote engine start does not operate.

      • U0100

      • U0101

      • U0155

      • U0164

      • U0293

      Diagnostic/C-BEST

      (Diagnostic phase 4 communication.)

      1. -

      2. All ECUs connected to CAN

      3. Main body ECU (multiplex network body ECU)

      Exits diagnostic mode.

      Nothing

      -

      Smart/Wireless

      (Smart/wireless control)

      1. Certification ECU (smart key ECU assembly)

      2. Main body ECU (multiplex network body ECU)

      3. Certification ECU (smart key ECU assembly)

      Entry lock/unlock control not possible.

      Nothing

      U0327

      Lighting Control

      (Performs DRL control)

      1. Main body ECU (multiplex network body ECU)

      2. ECM

      3. Main body ECU (multiplex network body ECU)

      Daytime running light control is not performed.

      Nothing

      U0100

      Back Door Opener

      (Performs back door opener control and power back door one motion open control)

      1. Main body ECU (multiplex network body ECU)

      2. Multiplex network door ECU

      3. Main body ECU (multiplex network body ECU)

      Back door opener control is prohibited.

      Nothing

      U0155

      Pre-air Conditioner

      (System which lowers the cabin temperature when the air conditioning is operated before entering the vehicle.)

      1. Main body ECU (multiplex network body ECU)

      2. Air conditioning amplifier assembly

      3. Air conditioning amplifier assembly

      Pre-air Conditioner operation is prohibited.

      Nothing

      U0164

      Tire Pressure Monitor Sensor

      (Monitors the tire pressure and meter speed, etc. and operates the meter indicators and multi-information display [gateway between BERKES and CAN].)

      1. Main body ECU (multiplex network body ECU)

      2. Combination meter assembly

      3. 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

      Entry Beam

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

      1. Main body ECU (multiplex network body ECU)

      2. Forward recognition camera

      3. Main body ECU (multiplex network body ECU)

      The system does not operate (the indicator in the meter blinks).

      The indicator in the meter blinks.

      U0182

      Air Conditioning Control

      (Controls the selecting of the registers, temperature adjustment, etc. according to remote touch operation.)

      1. Radio and display receiver assembly

      2. Air conditioning amplifier assembly

      3. -

      • The air conditioning related indicators are turned off.

      • If the set air temperature is displayed on an external display device, the system clears the set air temperature display.

      • Disables the functions used to operate the air conditioning system.

      Displays messages on the multi-information display.

      • U0073

      • U0164

      Clearance Sonar Settings/Notification

      (Controls the settings for the clearance sonar screen notifications which are set by remote touch operation, displays the sonar status.)

      1. Radio and display receiver assembly

      2. Clearance warning ECU assembly, ECM

      3. -

      • 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.

      • The "Intuitive Parking Assist" icon displayed on the vehicle settings screen is cleared.

      • Cannot switch to the camera screen (clearance sonar screen does not display on the camera screen).

      • U0073

      • U0100

      • U1110

      Eco Navigation Display

      (Displays the average fuel consumption history and a graph indicating the fuel consumption in 1 minute intervals.)

      1. Radio and display receiver assembly

      2. ECM, Hybrid vehicle control ECU, Combination meter assembly, Brake booster with master cylinder assembly (skid control ECU)

      3. -

      • The fuel consumption per minute display update on the eco navigation screen (fuel consumption per minute screen) stops (the fuel consumption per minute history graph is not cleared).

      • Stops updating the average fuel consumption history on the eco navigation (eco drive screen).

      • If the distance to empty is being displayed on the eco navigation (eco drive screen), the value displayed is cleared due to a distance to empty data communication stop.

      • The 1 minute fuel consumption graph on the eco navigation (eco drive) display is not updated for 1 minute or more.

      • The most recent value for the fuel consumption interval graph on the eco navigation (eco drive) screen is cleared.

      • The numbers of the distance to empty displayed on the fuel consumption screen of the eco navigation (eco drive) display are cleared.

      • U0100

      • U0129

      • U0155

      • U0293

      Hybrid Vehicle Energy Flow Display

      (Displays the energy flow which indicates the transmission of power and power regeneration state.)

      1. Radio and display receiver assembly

      2. Hybrid vehicle control ECU

      3. -

      If a communication stop occurs while the energy flow screen is being displayed, the energy flow display is cleared and the last value used for the remaining auxiliary battery amount is maintained.

      The flow display of the energy flow screen is cleared.

      U0293

      Destination Determination

      (Determines the destination of the vehicle and selects the display language, time zone, etc. based on destination symbols, destination package information, etc.)

      1. Radio and display receiver assembly

      2. Main body ECU (multiplex network body ECU)

      3. -

      Determines the destination according to the last received value and operates accordingly (if there is no last received value, the system operates using the default value).

      The time zone and language selection screens do not match the destination.

      U0140

      Vehicle Customize Function

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

      1. Radio and display receiver assembly

      2. Air conditioning amplifier assembly, Certification ECU (smart key ECU assembly), Main body ECU (multiplex network body ECU), Position control ECU and switch assembly

      3. -

      • 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, IDT and DST ECU are not displayed or the settings cannot be saved.

      • U0073

      • B15F5

      • B15F6

      • B15F7

      • B15F8

      HUD Display Function

      (Displays the navigation intersection guide information on the meter or HUD device.)

      1. Combination meter assembly

      2. Radio and display receiver assembly

      3. -

      Nothing

      Nothing

      U0073

      Time Stamp Function

      (Matches the relative time from the main body ECU with the absolute time acquired from the GPS.)

      1. Main body ECU (multiplex network body ECU)

      2. Main body ECU (multiplex network body ECU)

      3. -

      Nothing

      Nothing

      • U0073

      • U0140

      Smart Camera Function

      (Function which displays estimated course lines, width extension lines and distance guide lines on the image from the color rear camera when the vehicle is driven in reverse.)

      1. Radio and display receiver assembly

      2. ECM, Television camera assembly

      3. -

      When a malfunction occurs while the camera screen is displayed, the camera screen continues to display.

      The camera screen continues to display.

      -

      Meter-linked Function

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

      1. Radio and display receiver assembly

      2. Combination meter assembly

      3. -

      Maintains the last valid state.

      Nothing

      -

      Information Sound Adjustment Function

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

      1. Radio and display receiver assembly

      2. Driving support ECU assembly, Forward recognition camera

      3. -

      • Audio mute is canceled.

      • Audio limitation is canceled.

      Nothing

      -

      Timestamp

      (Stores the time when a DTC is stored for confirmation.)

      1. Power steering ECU assembly

      2. Main body ECU (multiplex network body ECU)

      3. Power steering ECU assembly

      Nothing

      Nothing

      -

      Assist Map Selection

      (Selects the assist map according to the destination information, drivetrain [2WD or 4WD], engine type, etc.)

      1. Power steering ECU assembly

      2. ECM

      3. -

      Nothing

      Nothing

      -

      DTC Output

      (When the TC signal is on, DTC information is sent according to the polling from meter ECU.)

      1. Power steering ECU assembly, Combination meter assembly

      2. Power steering ECU assembly, Combination meter assembly

      3. Power steering ECU assembly, Combination meter assembly

      Nothing

      Nothing

      -

      Steering Assist Calculation

      (Changes the assist force according to the vehicle speed.)

      1. Power steering ECU assembly

      2. ECM, Brake booster with master cylinder assembly (skid control ECU)

      3. Power steering ECU assembly

      • Even if the engine starts, steering assist does not start (steering assist starts when the vehicle speed is input).

      • As the vehicle speed cannot be determined, control continues with the vehicle speed set at 140 km/h (87 mph).

      The EPS warning light illuminates.

      • U0100

      • U0129

      αB Control

      (Performs assist to prevent sliding sideways.)

      1. Power steering ECU assembly

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. Power steering ECU assembly

      α-β control processing is stopped.

      Nothing

      -

      Simple Load Control

      (Determines the current power supply and load status, and sends commands to limit control.)

      1. Air conditioning amplifier assembly

      2. Power steering ECU assembly

      3. Air conditioning amplifier assembly

      Nothing

      Nothing

      -

      Steering Assist Calculation

      (Estimates the steering angle neutral point from the vehicle speed and resolver signal to determine the absolute steering angle.)

      1. Power steering ECU assembly

      2. Spiral with sensor cable sub-assembly (steering angle sensor)

      3. Power steering ECU assembly

      Functions that use the estimated steering angle are turned off (after estimation completes due to driving in a straight line, related functions are turned on).

      Nothing

      -

      Enter Test Mode

      (Receives the test mode signal and enters test mode.)

      1. Power steering ECU assembly

      2. ECM

      3. Power steering ECU assembly

      Nothing

      Nothing

      -

      Idle Up

      (When a large assist current is created, a request to perform idle up is sent to the ECM in order to prevent the auxiliary battery voltage from dropping.)

      1. ECM

      2. Power steering ECU assembly

      3. ECM

      Nothing

      Nothing

      -

      Warning Light Illumination

      (When the fail-safe function operates, a request to turn on the electronic power steering light is sent to the combination meter.)

      1. Combination meter assembly

      2. Power steering ECU assembly

      3. Combination meter assembly

      Nothing

      Nothing

      -

      Lane Departure Alert System

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

      1. Power steering ECU assembly

      2. Forward recognition camera

      3. Power steering ECU assembly

      Lane departure alert system control processing is stopped.

      Nothing

      -

      Microcomputer Preset Position System

      (Controls the memorized seat position according to vehicle information [power source mode, shift position, door, vehicle speed] and switch information [memory switch].)

      1. Position control ECU and switch assembly

      2. ECM, Main body ECU (multiplex network body ECU), Combination meter assembly

      3. -

      • The memory system does not operate.

      • The memory call function does not operate.

      • The return away function does not operate.

      • The memory system does not operate.

      • The memory call function does not operate.

      • The return away function does not operate.

      -

      Blind Spot Monitor

      (Warns the driver when the system detects a vehicle in the blind spots of the outer mirrors.)

      1. Blind spot monitor sensor LH

      2. Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Spiral with sensor cable sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU)

      3. Blind spot monitor sensor LH

      Maintains previous values.

      Blind spot monitor system warning displayed.

      • U0126

      • U0129

      • U0140

      • U0293

      Steering Sensor

      (Detects steering wheel angle)

      1. Spiral with sensor cable sub-assembly (steering angle sensor)

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. -

      Sends steering sensor data information every 12 seconds.

      Nothing

      -

      Power Back Door Open/Close Function

      • 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 switch operation (driver seat/wireless/back door).

      1. Multiplex network door ECU

      2. Hybrid vehicle control ECU, Main body ECU (multiplex network body ECU), Combination meter assembly, Certification ECU (smart key ECU assembly), Brake booster with master cylinder assembly (skid control ECU)

      3. -

      • Does not perform the automatic open and close operation.

      • The function cannot reverse operation during the automatic operation.

      • There is no answer back with the buzzer or hazard warning lights when the automatic back door operation starts.

      • Does not perform the automatic open and close operation.

      • The wireless one motion function does not operate.

      • Stopping the automatic open or closing operation is not possible.

      • The function cannot reverse operation during the closer operation.

      • U0101

      • U0122

      • U0142

      • U0155

      • U1117

      Wireless One Motion Function

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

      1. Multiplex network door ECU

      2. Hybrid vehicle control ECU, Main body ECU (multiplex network body ECU), Combination meter assembly, Brake booster with master cylinder assembly (skid control ECU)

      3. -

      The wireless one motion function does not operate.

      The wireless one motion function does not operate.

      • U0101

      • U0122

      • U0142

      • U0155

      • U1117

      Back Door Opener Function

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

      1. Multiplex network door ECU

      2. Main body ECU (multiplex network body ECU), Combination meter assembly, Certification ECU (smart key ECU assembly)

      3. -

      The back door opener does not operate.

      The back door opener does not operate.

      • U0142

      • U0155

      • U1117

      Back Door Closer Function

      (Completely closes the back door when it is ajar.)

      1. Multiplex network door ECU

      2. Main body ECU (multiplex network body ECU), Combination meter assembly, Certification ECU (smart key ECU assembly)

      3. -

      The function cannot reverse operation during the closer operation.

      The function cannot reverse operation during the closer operation.

      • U0142

      • U0155

      • U1117

      Courtesy Switch Signal Substitution Output Function

      (Sends a back door courtesy switch signal through the CAN bus.)

      1. Multiplex network door ECU

      2. Main body ECU (multiplex network body ECU)

      3. -

      Nothing

      When the back door opens, the indicator in the meter indicating the door is open does not illuminate

      -

      Lock Permission Signal Output Function during Power Back Door Closing Operation

      (Sends a power back door closing operation signal to the CAN bus in order to allow a wireless door lock during the power back door closing operation.)

      1. Multiplex network door ECU

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      3. -

      Nothing

      Disallows the wireless lock during the power back door closing operation.

      -

      Combination Meter Customization

      (Customization can be performed using the combination meter.)

      1. Multiplex network door ECU

      2. Combination meter assembly

      3. -

      Maintains the last valid state before communication stop.

      Customization cannot be performed using the combination meter.

      U0155

      Vehicle Speed Display

      (Operates the speedometer according to the vehicle speed signals from the skid control ECU.)

      1. Combination meter assembly

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. -

      Signal is considered to be "0".

      • Displays 0 km/h (0 mph) in the speedometer.

      • The drive monitor stops calculating.

      U0129

      Hybrid Vehicle Indicator

      (Operates the hybrid vehicle indicator.)

      1. Combination meter assembly

      2. Hybrid vehicle control ECU

      3. -

      Signal is considered to be "0".

      The hybrid vehicle indicator turns off.

      U0100

      Airbag

      (Turns the airbag warning light on and off.)

      1. Combination meter assembly

      2. Airbag sensor assembly

      3. -

      Signal is considered to be "Active".

      The airbag warning light illuminates.

      U0151

      EPS Warning Light

      (Turns the EPS warning light on and off.)

      1. Combination meter assembly

      2. Power steering ECU assembly

      3. -

      Signal is considered to be "Active".

      The EPS warning light illuminates.

      U0131

      SLIP Indicator Light

      (Turns the SLIP indicator light on and off.)

      1. Combination meter assembly

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. -

      Signal is considered to be "Active".

      The SLIP indicator illuminates.

      -

      ECT/ENG System Display

      (Displays the coolant temperature.)

      1. Combination meter assembly

      2. Hybrid vehicle control ECU

      3. -

      Signal is considered to be "0".

      The needle of the engine coolant temperature gauge is at the C mark or below.

      -

      Anti-lock Brake System Control

      (Prevents the wheels from locking when suddenly stopping.)

      1. Brake booster with master cylinder assembly (skid control ECU)

      2. Airbag sensor assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      • During control: After ending backup control (which stabilizes the vehicle), the system changes to normal braking and prohibits this control.

      • Not during control: Control cannot begin.

      • The brake warning light illuminates.

      • The ABS warning light illuminates.

      • The SLIP indicator illuminates.

      • U0073

      • U0123

      • U0124

      Vehicle Stability Control/Traction Control

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

      1. Brake booster with master cylinder assembly (skid control ECU)

      2. Hybrid vehicle control ECU, Spiral with sensor cable sub-assembly (steering angle sensor), Airbag sensor assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      • During control: After ending backup control (which stabilizes the vehicle), the system changes to normal braking and prohibits this control.

      • Not during control: Control cannot begin.

      • The brake warning light illuminates.

      • The ABS warning light illuminates.

      • The SLIP indicator illuminates.

      • U0073

      • U0123

      • U0124

      • U0126

      • U0293

      Hill-start Assist Control 3

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

      1. Brake booster with master cylinder assembly (skid control ECU)

      2. Hybrid vehicle control ECU, Spiral with sensor cable sub-assembly (steering angle sensor), Airbag sensor assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      • During control: After ending backup control (pressure reduction control), the system changes to normal braking and prohibits control, or control continues, and after normal control finishes, prohibits control.

      • Not during control: Control cannot start.

      • The brake warning light illuminates.

      • The ABS warning light illuminates.

      • The SLIP indicator illuminates.

      • U0073

      • U0123

      • U0124

      • U0126

      • U0293

      Hybrid Vehicle Regenerative Brake Coordinated Control

      (Performs regenerative brake coordinated control with the hybrid vehicle system.)

      1. Brake booster with master cylinder assembly (skid control ECU)

      2. Hybrid vehicle control ECU, Airbag sensor assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      • During control: After ending backup control (pressure reduction control), the system changes to normal braking and prohibits control, or control continues, and after normal control finishes, prohibits control.

      • Not during control: Control cannot start.

      • The brake warning light illuminates.

      • The ABS warning light illuminates.

      • The SLIP indicator illuminates.

      • U0073

      • U0123

      • U0124

      • U0293

      Entry Function

      • Entry lock/unlock and smart back door unlatch

      • Entry warning

      • Entry illumination (Dome light illumination, etc.)

      1. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      3. Main body ECU (multiplex network body ECU), Combination meter assembly

      An entry unlock retry is performed.

      • When transmission is abnormal:

      • The entry lock/unlock and back door open/unlatch do not operate.

      • The smart access system with push-button 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.

      • When there is a reception stop:

      • The smart access system with push-button start warnings (the key lock-in prevention warning, the leaving with the key warning, key reminder, etc.), the power switch on (IG) possible display, and the key lock-in prevention function do not operate.

      • The answer back function repeats a maximum of 3 times when an unlock operation is performed. However, this only occurs when the main body ECU (multiplex network body ECU) can receive requests from the certification ECU (smart key ECU assembly).

      • When the power switch on (IG), the entry lock/unlock and back door unlatch do not operate.

      • U0142

      • U0155

      1. Certification ECU (smart key ECU assembly)

      2. ECM

      3. Combination meter assembly

      The previous value is maintained.

      Incorrect smart access system with push-button start warnings are output.

      U0100

      Wireless Function

      (Operates the wireless lock/unlock functions, etc.)

      1. Main body ECU (multiplex network body ECU)

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      3. Main body ECU (multiplex network body ECU)

      Nothing

      Wireless lock/unlock and trunk functions do not operate.

      -

      Remote Engine Start Function

      (Requests for the immobiliser to be unset in response to data from the remote engine start ECU.)

      1. Main body ECU (multiplex network body ECU)

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      3. ECM

      Nothing

      The remote engine start does not operate.

      U0142

      Memory Function

      (Moves the seat to the memorized position when the doors are unlocked using the smart or wireless unlock.)

      1. Main body ECU (multiplex network body ECU)

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly)

      3. Position control ECU and switch assembly

      Nothing

      The memory recall function does not operate.

      U0142

      Power Switch Illumination Control

      (Operates power switch illumination in conjunction with the dome light illumination, etc.)

      1. Certification ECU (smart key ECU assembly)

      2. Main body ECU (multiplex network body ECU), Certification ECU (smart key ECU assembly), Combination meter assembly

      3. Certification ECU (smart key ECU assembly)

      • When the power switch letters are illuminated due to the dome light, the illumination turns off.

      • When the DC cut fuse is removed and the power switch letters are illuminated due to the panel illumination, the illumination turns off.

      • The previous value is maintained.

      • If the power switch letters are not illuminated, they never illuminate.

      • If the power switch letters are illuminated due to the panel illumination, the illumination does not turn off.

      • When the power switch letters are illuminated due to the dome light, the illumination does not turn off.

      • When the DC cut fuse is removed and the power switch letters are illuminated due to the panel illumination, the illumination turns off.

      U0142

      TC DTC Output Service

      (While TC = ON is being received from the engine, a DTC is output in response to the request from the combination meter assembly.)

      1. Combination meter assembly

      2. Hybrid vehicle control ECU

      3. Airbag sensor assembly

      If the TC signal is lost during TC service (TC=ON), the TC is determined to be OFF and TC service ends.

      Nothing

      -

      Timestamp

      (Records DTCs and timestamps received from the main body ECU.)

      1. Airbag sensor assembly

      2. Main body ECU (multiplex network body ECU)

      3. -

      Changes to a separate count inside the ECU and sets separate count recognition information when it receives a fail value or communication stops.

      Nothing

      -

      Collision Detection Signal

      (Notifies the system of a collision in order to perform fuel cut when a vehicle collision occurs.)

      1. ECM

      2. Airbag sensor assembly

      3. -

      Nothing

      Nothing

      -

      Airbag Warning Light Control

      (Sends airbag warning light illumination information.)

      1. Combination meter assembly

      2. Airbag sensor assembly

      3. -

      Nothing

      Nothing

      -

      Seat Belt Warning Control

      (Sends information about the passengers in order to turn the seat belt warning on and off.)

      1. Main body ECU (multiplex network body ECU), Combination meter assembly

      2. Airbag sensor assembly

      3. -

      Nothing

      Nothing

      -

      Trigger Signal/Autonomous Transmission

      (Outputs the yaw rate and acceleration sensor signal.)

      1. Airbag sensor assembly

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. Brake booster with master cylinder assembly (skid control ECU)

      Sends yaw rate sensor data information.

      Nothing

      -

      Event Data Recorder (EDR)

      (Records conditions such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the event data recorder recording conditions are met.)

      1. Airbag sensor assembly

      2. ECM, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Spiral with sensor cable sub-assembly (steering angle sensor)

      3. -

      • When there is a communication error, a failure notification is received from the other device, or an invalid value is recorded in the EDR when the communication failure occurs.

      • When there is a periodic problem, the previous value is maintained.

      Nothing

      -

      Drive Data Recorder (DDR)

      (Records conditions such as the vehicle speed, the amount the accelerator is depressed, and the shift lever position when the drive data recorder recording conditions are met.)

      1. Airbag sensor assembly

      2. ECM, Hybrid vehicle control ECU, Brake booster with master cylinder assembly (skid control ECU), Main body ECU (multiplex network body ECU), Combination meter assembly, Power steering ECU assembly, Spiral with sensor cable sub-assembly (steering angle sensor), Airbag sensor assembly, Driving support ECU assembly, Forward recognition camera

      3. -

      • When there is a communication error, a failure notification is received from the other device, or an invalid value is recorded in the DDR when the communication failure occurs.

      • When there is a periodic problem, the previous value is maintained.

      Nothing

      -

      Parking Assist Monitor

      (Monitors the shift position signal, steering angle signal and vehicle speed, and displays the predicted path guide lines on the screen based on the steering angle when reversing.)

      1. Television camera assembly

      2. Main body ECU (multiplex network body ECU), Spiral with cable sensor sub-assembly (steering angle sensor), Radio and display receiver assembly, Clearance warning ECU assembly

      3. -

      Parking assist monitor function is prohibited.

      • Predicted path guide lines are not displayed.

      • All guide lines and the clearance sonar icon are not displayed.

      • U0126

      • U0140

      • U0163

      • U1110

      Clearance Sonar Customize

      (Changes the clearance sonar settings when the user operates the display.)

      1. Clearance warning ECU assembly

      2. Radio and display receiver assembly, Clearance warning ECU assembly

      3. Clearance warning ECU assembly

      Nothing

      Nothing

      -

      Shift Position Judgment

      (Receives shift position data which it uses for the clearance sonar detection operation conditions.)

      1. Clearance warning ECU assembly

      2. ECM, Clearance warning ECU assembly

      3. Clearance warning ECU assembly

      Changes to an operation state which is used when the shift lever is in P.

      Nothing

      U0101

      Vehicle Speed Determination

      (Receives vehicle speed data which it uses for the clearance sonar detection operation conditions.)

      1. Clearance warning ECU assembly

      2. Combination meter assembly, Clearance warning ECU assembly

      3. Clearance warning ECU assembly

      Changes to an operation state which is used when the vehicle speed is 20 km/h (12 mph) or higher.

      Nothing

      U0155

      Distance Correction

      (Corrects the distance measured by ultrasonic waves using the ambient temperature information.)

      1. Clearance warning ECU assembly

      2. Air conditioning amplifier assembly, Clearance warning ECU assembly

      3. Clearance warning ECU assembly

      Changes to an operation state which is used when the ambient temperature is 25°C (68°F).

      Nothing

      -

      Vehicle Information Judgment

      (Judges whether ECUs are present and switches control.)

      1. Clearance warning ECU assembly

      2. ECM, Main body ECU (multiplex network body ECU)

      3. Clearance warning ECU assembly

      • When there is a communication stop after judging the transmission, control is performed according to previous values.

      • When there is a communication stop after turning the power switch on (IG), the clearance sonar does not operate.

      Clearance sonar does not operate.

      U0100

      Automatic High Beam

      • Controls high beams.

      • Function that recognizes lights in front of the vehicle and automatically operates the high beams.

      1. Forward recognition camera

      2. Brake booster with master cylinder assembly (skid control ECU), ECM, Main body ECU (multiplex network body ECU), Airbag sensor assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      Maintains the current conditions.

      The automatic high beam indicator light blinks.

      -

      1. Forward recognition camera

      2. Brake booster with master cylinder assembly (skid control ECU), Spiral with cable sensor sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU), ECM, Airbag sensor assembly

      3. -

      System is stopped.

      The automatic high beam indicator light blinks.

      • U0100

      • U0123

      • U0126

      • U0129

      Lane Departure Alert System (w/ Steering Control)

      • Uses the front camera to recognize the lane markers of the currently traveled lane and uses that information together with vehicle information to perform the following function:

        • When the system determines that the vehicle may deviate from its lane, steering assist is performed to prevent the vehicle from deviating.

      1. Forward recognition camera

      2. Brake booster with master cylinder assembly (skid control ECU), Spiral with cable sensor sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU), Combination meter assembly, Power steering ECU assembly, ECM, Airbag sensor assembly, Driving support ECU assembly, Millimeter wave radar sensor assembly

      3. Power steering ECU assembly

      System is stopped.

      • The LDA indicator illuminates.

      • A malfunction message is displayed.

      • U0101

      • U0123

      • U0126

      • U0129

      • U0131

      • U0142

      • U0155

      • U0235

      • U023A

      • U0293

      • U1104

      Lane Departure Alert System

      (Function that uses the front camera to recognize the lane markers of the currently traveled lane and uses that information together with vehicle information to judge if the vehicle is wandering and prompt the driver to take a rest.)

      1. Forward recognition camera

      2. Brake booster with master cylinder assembly (skid control ECU), Spiral with cable sensor sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU), Combination meter assembly, Power steering ECU assembly, ECM, Hybrid vehicle control ECU, Airbag sensor assembly, Driving support ECU assembly, Millimeter wave radar sensor assembly

      3. -

      System is stopped.

      • The LDA indicator illuminates.

      • A malfunction message is displayed.

      • U0101

      • U0123

      • U0126

      • U0129

      • U0131

      • U0142

      • U0155

      • U0235

      • U023A

      • U0293

      • U1104

      Pre-crash Safety

      • Function that recognizes vehicles and pedestrians and operates the brake.

      • Controls brakes immediately before a collision.

      1. Forward recognition camera

      2. Brake booster with master cylinder assembly (skid control ECU), Spiral with cable sensor sub-assembly (steering angle sensor), Main body ECU (multiplex network body ECU), Hybrid vehicle control ECU, Airbag sensor assembly

      3. -

      System is stopped.

      • The PCS indicator illuminates.

      • A malfunction message is displayed.

      • U0123

      • U0129

      • U0142

      • U0293

      1. Driving support ECU assembly

      2. Driving support ECU assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      Pre-crash safety brake assist, warning buzzer and pre-crash safety brake control is canceled.

      • The PCS indicator illuminates.

      • A malfunction message is displayed.

      • U0235

      • U1104

      1. Driving support ECU assembly

      2. Millimeter wave radar sensor assembly, Forward recognition camera, Brake booster with master cylinder assembly (skid control ECU), Airbag sensor assembly, Spiral with sensor cable sub-assembly (steering angle sensor), Hybrid vehicle control ECU

      3. Brake booster with master cylinder assembly (skid control ECU)

      Pre-crash safety brake assist, warning buzzer and pre-crash safety brake control is canceled.

      • The PCS indicator illuminates.

      • A malfunction message is displayed.

      • U0123

      • U0125

      • U0126

      • U0129

      • U0235

      • U023A

      • U0293

      • U1104

      Dynamic Radar Cruise

      (Accelerates or decelerates the vehicle to maintain the distance to the vehicle ahead.)

      1. Driving support ECU assembly, Hybrid vehicle control ECU

      2. Millimeter wave radar sensor assembly, Brake booster with master cylinder assembly (skid control ECU), Airbag sensor assembly, Spiral with sensor cable sub-assembly (steering angle sensor), Forward recognition camera

      3. ECM, Brake booster with master cylinder assembly (skid control ECU)

      Cruise control does not operate.

      A malfunction message is displayed.

      • U0122

      • U0125

      • U0126

      • U0129

      • U0235

      • U0293

      • U1104

      Panoramic View Monitor

      • Shows an overhead map along with front, side and rear images on the display.

      • Shows guide lines on the displayed image in tandem with the steering angle.

      • Displays the clearance sonar detection area.

      1. Parking assist ECU

      2. Main body ECU (multiplex network body ECU), ECM, Brake booster with master cylinder assembly (skid control ECU), Clearance warning ECU assembly

      3. Brake booster with master cylinder assembly (skid control ECU)

      • If the panoramic view monitor screen is displayed, screen display ends.

      • If the front mode screen is displayed, screen display ends.

      • If the front screen of back mode is displayed, the previously displayed back screen is displayed.

      • If a magnification image is displayed, the magnification image display ends and switches to the overhead image.

      • Panoramic view monitor does not operate.

      • "Guidance unavailable" is displayed on the multi-display.

      • Clearance sonar cooperative control is not displayed.

      • The communication failure mark is displayed on top of the clearance sonar icon.

      • U0073

      • U0100

      • U0126

      • U0129

      • U0140

      • U1110

      Meter Display Request

      (Sends requests to the combination meter to illuminate various indicators and display various items on the multi-information display.)

      1. Combination meter assembly

      2. Hybrid vehicle control ECU

      3. -

      Nothing

      The engine coolant temperature, fuel consumption values, etc., are not properly displayed.

      -

      Fuel Gauge Reception

      (Used for determining when the vehicle has ran out of fuel.)

      1. ECM

      2. Combination meter assembly

      3. -

      Nothing

      Nothing

      -

      Electric Fan

      (Controls the electric fan motor by air conditioning request.)

      1. ECM

      2. Air conditioning amplifier assembly

      3. -

      Electric fan operates in fail-safe mode.

      Nothing

      -

      Cooperative Control

      (Performs cooperative control between the hybrid vehicle control ECU and ECM.)

      1. Hybrid vehicle control ECU

      2. Hybrid vehicle control ECU

      3. -

      The engine is stopped.

      The master warning light illuminates.

      U0100

      MIL

      (Turns the MIL on and off.)

      1. Combination meter assembly

      2. ECM

      3. -

      Nothing

      • The MIL illuminates.

      • The hybrid vehicle indicator illuminates.

      -

      Driving Control

      (Controls the engine and magnetic clutch after receiving engine information.)

      1. Hybrid vehicle control ECU

      2. ECM

      3. -

      Vehicle uses motor.

      The MIL illuminates.

      -

      Regenerative Brake Coordinate Control

      (Attempts to increase the amount of energy recovered by coordinating control with the electronically controlled brake system.)

      1. Brake booster with master cylinder assembly (skid control ECU)

      2. Brake booster with master cylinder assembly (skid control ECU)

      3. -

      Regenerative braking is prohibited.

      • Regenerative braking is prohibited.

      • The hybrid vehicle indicator illuminates.

      • Traction control is prohibited.

      -

      Vehicle Damage Determination

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

      1. Hybrid vehicle control ECU

      2. Airbag sensor assembly

      3. -

      Driving is normal.

      • The MIL illuminates.

      • The hybrid vehicle indicator illuminates.

      -

      Air Conditioning Control

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

      1. Air conditioning amplifier assembly

      2. Air conditioning amplifier assembly

      3. -

      Driving is normal.

      Air conditioning control does not operates.

      -

      ERA-GLONASS

      (Sends position location to the emergency call center and calls an operator when the system detects that an airbag has been deployed or the button is pressed.)

      1. Telematics transceiver

      2. ECM

      3. -

      When CAN communication is lost, registration requests from the GTS are denied.

      Nothing

      U0100