CAN COMMUNICATION SYSTEM FAIL-SAFE CHART


  1. FAIL-SAFE FUNCTION


    1. When communication fails in any of the main wires (communication lines) due to a short circuit or other causes, the fail-safe function, which is specified for each system, operates to prevent the system from malfunctioning.

    2. The table below shows the effects on each system when communication is impossible. For further details, refer to each system.

      System Function

      1. Control Master

      2. System Related

      3. Control Actuator

      		 Fail-safe Function System Behavior Indicator and Buzzer Behavior or User Notification

      Diagnosis Code

      [Diagnosis Code Hold Condition]
      ECD

      Electrical load control

      (Increases idle speed according to electrical load.)

      1. ECM [V1 bus]

      2. Air conditioning amplifier assembly, Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. -

      		 The idle speed increase due to electrical load is not performed. Nothing

      Nothing

      [-]

      Air conditioner-linked control

      (Idle speed increased according to compressor load.)

      1. ECM [V1 bus]

      2. Air conditioning amplifier assembly

      3. -

      		 Air conditioner-linked control does not operate. Nothing

      Nothing

      [-]

      PTC heater

      (Increases idle speed according to requests from the PTC heater or the heater system.)

      1. ECM [V1 bus]

      2. Air conditioning amplifier assembly

      3. -

      		 PTC heater does not operate. Nothing

      Nothing

      [-]

      Charging control

      (Increases idle speed according to charging requests.)

      1. Power management control ECU [Power management bus]

      2. Power management control ECU [Power management bus]

      3. ECM [V1 bus]

      		 The idle speed increase according to charging requests is not performed. Nothing

      Nothing

      [-]

      ECD system indicator

      (Estimates the deterioration of the oil and displays a prompt to change oil on the meter.)

      1. ECM [V1 bus]

      2. -

      3. Combination meter assembly

      		 Indicator does not illuminate. Nothing

      Nothing

      [-]

      ECT system indicators

      (Indicators indicating shift position, states of switches, system modes, etc.)

      1. ECM [V1 bus]

      2. -

      3. Combination meter assembly

      		 Indicator does not illuminate. Nothing

      Nothing

      [-]

      Spring vibration damping control

      (Behavior of the spring due to outside disturbances (pitch and bounce) is improved with transient driving force control.)

      1. ECM [V1 bus]

      2. Brake actuator assembly (VSC ECU)

      3. -

      		 Behavior of the spring due to outside disturbances (pitch and bounce) is not improved with transient driving force control. Nothing

      Nothing

      [-]

      Neutral control

      (The engine load is reduced, and the idle speed is increased.)

      1. ECM [V1 bus]

      2. Brake actuator assembly (VSC ECU)

      3. -

      		 Neutral control does not operate. Nothing

      Nothing

      [-]
      ECD

      Integrated control

      (Improvement of stable constant-speed drivability, starting ability, repeated acceleration and feeling of acceleration is achieved by estimating the required torque from the operation of the accelerator pedal and performing torque control according to the driving situation.)

      1. ECM [V1 bus]

      2. Power steering ECU assembly, Brake actuator assembly (VSC ECU)

      3. ECM [V1 bus]

      		 Estimation of the required torque from the operation of the accelerator pedal, and torque control according to the driving situation are not performed. As a result, improvement of the following is not achieved: stable constant-speed drivability, starting ability, repeated acceleration and feeling of acceleration. Nothing

      Nothing

      [-]

      Eco driving indicator

      (Informs the driver about ECO-driving status.)

      1. ECM [V1 bus]

      2. -

      3. Combination meter assembly

      		 Indicator is turned off. Nothing

      Nothing

      [-]
      Air conditioning

      Air conditioning compressor control


      • Determines the air conditioning control state based on the coolant temperature signal.

      • Determines the structure of the air conditioning system based on the engine type information and determines the air conditioning control state.

      • Determines the air conditioning control state based on the engine speed signal.

      • Determines the compressor control state based on the acceleration cut signal.

      1. Air conditioning amplifier assembly

      2. ECM [V1 bus]

      3. Air conditioning amplifier assembly

      		 Air conditioning compressor does not operate. Nothing

      U0100

      [Stored until the code is cleared with the intelligent tester.]

      Steering wheel position/destination determination control


      • Controls the direction of operation of the servo motor based on the steering wheel position.

      • Controls the air conditioning based on the destination information.

      1. Air conditioning amplifier assembly

      2. Main body ECU (instrument panel junction block assembly) [MS bus]

      3. Air conditioning amplifier assembly

      • Servo motor does not operate.

      • The set temperature range for the heater deviates.

      		 Nothing

      U0142

      [Stored until the code is cleared with the intelligent tester.]
      Air conditioning

      Ambient temperature control


      • Controls the air conditioning based on the ambient temperature.

      • Performs ambient temperature compensation based on the vehicle speed.

      1. Air conditioning amplifier assembly

      2. Combination meter assembly

      3. Air conditioning amplifier assembly

      		 Air conditioning does not function properly (temperature control is not possible). Nothing

      U0155

      [Stored until the code is cleared with the intelligent tester.]

      Simple load control

      (Cuts the air conditioning load based on the signal from power steering ECU assembly.)

      1. Air conditioning amplifier assembly

      2. Power steering ECU assembly

      3. Air conditioning amplifier assembly

      		 Simple load control cannot be performed. Nothing

      U0131

      [Stored until the code is cleared with the intelligent tester.]
      Airbag Fuel-cut

      1. Center airbag sensor assembly

      2. -

      3. ECM [V1 bus]

      		 Airbag operating properly Nothing

      Nothing

      [-]
      SRS warning light control

      1. Center airbag sensor assembly

      2. -

      3. Combination meter assembly

      		 Airbag operating properly Nothing

      Nothing

      [-]
      Event data recorder

      1. Center airbag sensor assembly

      2. ECM [V1 bus], Combination meter assembly

      3. Center airbag sensor assembly

      		 Airbag system operating properly Nothing

      Nothing

      [-]
      Electric parking brake

      Static braking function

      (This function is activated via the driver's operation of the switch when the vehicle is stopped and holds the vehicle in place by electrically activating the parking brake.)

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. Brake actuator assembly (VSC ECU)

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      		 - PARK warning light turns on.

      U0129

      [Stored until the code is cleared with the intelligent tester.]

      Dynamic braking function

      (This function decelerates the vehicle during driving using the parking brake.)

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. Brake actuator assembly (VSC ECU)

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      		 Dynamic braking function is disabled. Static braking function operates even when the vehicle is being driven. PARK warning light turns on.

      U0129

      [Stored until the code is cleared with the intelligent tester.]
      Electric parking brake

      Automatic disengagement function

      (This function disengages the parking brake automatically when the vehicle begins driving while the parking brake is engaged (for M/T).)

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. Brake actuator assembly (VSC ECU)

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      		 Drive away release (DAR) is disabled. PARK warning light turns on.

      U0129

      [Stored until the code is cleared with the intelligent tester.]

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. Yaw rate sensor

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      U0124

      [Stored until the code is cleared with the intelligent tester.]

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. ECM [V1 bus]

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      U0100

      [Stored until the code is cleared with the intelligent tester.]

      Auto application function

      (This function automatically operates the parking brake in order to hold the vehicle when the electric parking brake switch is malfunctioning by monitoring the ignition switch condition (for M/T).)

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. Brake actuator assembly (VSC ECU)

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      		 Auto apply is disabled. PARK warning light turns on.

      U0129

      [Stored until the code is cleared with the intelligent tester.]

      1. Parking brake with bracket actuator assembly (electric parking brake ECU)

      2. ECM [V1 bus]

      3. Parking brake with bracket actuator assembly (electric parking brake ECU)

      U0100

      [Stored until the code is cleared with the intelligent tester.]
      Meter/gauge Speedometer

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - 0 km/h (0 mph) is displayed.

      U0129

      [Stored until the code is cleared with the intelligent tester.]
      Tachometer

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - 0 rpm is displayed.

      U0100

      [Stored until the code is cleared with the intelligent tester.]
      Meter/gauge Coolant temperature gauge

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - LCD segments turn off.

      Nothing

      [-]
      Fuel gauge

      1. Combination meter assembly

      2. ECM [V1 bus], Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 -

      Control is performed with the following conditions set as below:


      • Shift lever is not in P or N.

      • ST is off.

      • Speedometer value is 0 km/h (0 mph).

      B1500

      [Only stored as a current DTC. Stored until cleared with the intelligent tester.]
      ODO/TRIP meter

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Calculation stops and the last displayed value remains.

      Nothing

      [-]
      A/T shift indicator

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Turns off.

      Nothing

      [-]
      SRS warning light

      1. Combination meter assembly

      2. Center airbag sensor assembly

      3. Combination meter assembly

      		 - Turns on until the ignition switch is turned off.

      Nothing

      [-]
      ABS warning light

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Turns on until the ignition switch is turned off.

      Nothing

      [-]
      Brake system warning light (yellow indicator)

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Turns on until the ignition switch is turned off.

      Nothing

      [-]
      SLIP indicator light

      1. Combination meter

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      AFS OFF indicator light

      1. Combination meter assembly

      2. Headlight swivel ECU assembly (AFS ECU)

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      Meter/gauge BEAM indicator light

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) (V1 bus)

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Rr FOG indicator light

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Fr FOG indicator light

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Driver side seat belt warning light

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Front passenger side seat belt warning light

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      TAIL OFF indicator light

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      EPS indicator light

      1. Combination meter assembly

      2. Power steering ECU assembly

      3. Combination meter assembly

      		 - Turns on until ignition switch is turned off.

      Nothing

      [-]
      SPORT indicator light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON.

      Nothing

      [-]
      Meter/gauge SIL indicator light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Turns off.

      Nothing

      [-]
      CHARGE warning light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      GLOW warning light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      ECO indicator light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Turns off.

      Nothing

      [-]

      • CRUISE main indicator light

      • Radar cruise indicator light

      • CRUISE SET indicator light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      LKA indicator light

      1. Combination meter assembly

      2. Driving support ECU assembly [V2 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      ASL indicator light

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      Seat belt reminder buzzer

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus], Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 -

      Control is performed with the following conditions set as below:


      • Vehicle speed is 0 km/h (0 mph).

      • Seat belt is fastened.

      Nothing

      [-]
      Meter/gauge Driving with open door buzzer

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus], Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 -

      Control is performed with the following conditions set as below:


      • Vehicle speed is 0 km/h (0 mph).

      • Door status is maintained as the status indicated by the last received signal.

      Nothing

      [-]
      Sliding roof buzzer

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Status is maintained until BUS-sleep mode.

      Nothing

      [-]
      Entry and start buzzer (Continuous, intermittent and single)

      1. Combination meter assembly

      2. Certification ECU

      3. Combination meter assembly

      		 - Continuous and intermittent buzzers: Do not sound. Single buzzer: Same as the state indicated by the last received signal.

      Nothing

      [-]
      Immobiliser key buzzer

      1. Combination meter assembly

      2. Certification ECU

      3. Combination meter assembly

      		 - Same as the state indicated by the last received signal.

      Nothing

      [-]
      Key reminder buzzer

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Does not sound.

      Nothing

      [-]
      Light reminder buzzer

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Does not sound.

      Nothing

      [-]
      Driving with parking brake applied buzzer

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Control is performed with the vehicle speed set to 0 km/h (0 mph).

      Nothing

      [-]
      Radar cruise low speed cancel buzzer

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      Meter/gauge Shift reject buzzer

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      LKA buzzer (Double)

      1. Combination meter assembly

      2. Driving support ECU assembly [V2 bus]

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned off.

      Nothing

      [-]
      DTC

      1. Combination meter assembly

      2. Center airbag sensor assembly, ECM [V1 bus], Power steering ECU assembly, Parking brake with bracket actuator assembly (electric parking brake ECU), Brake actuator assembly (VSC ECU), Driving support ECU assembly [V2 bus]

      3. Combination meter assembly

      		 - Switches to normal mode.

      Nothing

      [-]
      Meter/gauge On-board computer

      1. Combination meter assembly

      2. ECM [V1 bus], Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 -

      • Current fuel consumption: Calculation stops until the ignition switch is turned off and only the scale is displayed.

      • Average fuel consumption: Calculation stops until the ignition switch is turned off and only the units are displayed.

      • Average vehicle speed: Calculation stops until the ignition switch is turned off and only the units are displayed.

      • Cruising range: Calculation stops until the ignition switch is turned off and only the units are displayed.

      • Elapsed driving time: Calculation stops and the display is blank.

      Nothing

      [-]
      Multi-display ACC, LKA and ASL operation

      1. Combination meter assembly

      2. ECM [V1 bus], Driving support ECU assembly [V2 bus]

      3. Combination meter assembly

      		 - Turns off.

      Nothing

      [-]
      Multi-display ACC, LKA and ASL warning

      1. Combination meter assembly

      2. ECM [V1 bus], Driving support ECU assembly [V2 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Multi-display PCS

      1. Combination meter assembly

      2. Seat belt control ECU

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Meter/gauge Multi-display rear seat belt

      1. Combination meter assembly

      2. -

      3. Combination meter assembly

      		 -

      Control is performed with the following conditions set as below:


      • Vehicle speed is 0 km/h (0 mph).

      • Status of other conditions is maintained.

      Nothing

      [-]
      Multi-display VSC

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Turns on.

      Nothing

      [-]
      Multi-display OIL pressure

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Control is performed with the tachometer value set to 0 rpm.

      Nothing

      [-]
      Multi-display DOOR

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Multi-display entry and start and power management

      1. Combination meter assembly

      2. Certification ECU, Power management control ECU [V1 bus]

      3. Combination meter assembly

      		 - Current status is maintained while the ignition switch is ON and turns off when the ignition switch is turned off.

      Nothing

      [-]
      Multi-display image when driving with parking brake applied

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Control is performed with the vehicle speed set to 0 km/h (0 mph).

      Nothing

      [-]
      Multi-display OIL LEVEL

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Control is performed with the engine coolant temperature set to 80°C (176°F) or higher.

      Nothing

      [-]
      Multi-display OIL MAINTENANCE

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 - Turns on while the ignition switch is ON.

      Nothing

      [-]
      Multi-display LIGHT reminder

      1. Combination meter assembly

      2. Main body ECU (instrument panel junction block assembly) [V1 bus]

      3. Combination meter assembly

      		 - Turns off.

      Nothing

      [-]
      Meter/gauge Multi-display T/M oil temperature

      1. Combination meter assembly

      2. ECM [V1 bus]

      3. Combination meter assembly

      		 -

      Control is performed with the following conditions set as below:


      • B_OMWI is 1.

      • NE1, the tachometer value, is 0 rpm.

      Nothing

      [-]
      Multi-display STOP light

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. Combination meter assembly

      		 - Current status is maintained until the ignition switch is turned to ON.

      Nothing

      [-]
      Power management control

      Push start

      (This system changes the power source mode based on the push start switch signal and requests starter operation when certain conditions are met.)

      1. Power management control ECU [V1 bus]

      2. Combination meter assembly, ECM [V1 bus]

      3. -

      		 The system does not display the starting prompt "Depress the brake pedal when starting" when it should. -

      U0100

      [Stored until the code is cleared with the intelligent tester.]
      Entry and start

      Entry and start function

      (Entry and start lock, unlock, trunk and warning functions)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus], Combination meter assembly

      2. Certification ECU

      3. Main body ECU (instrument panel junction block assembly) [V1 bus], Combination meter assembly

      • Entry and start lock, unlock and trunk functions do not operate.

      • Entry and start warning function does not operate.

      • Entry and start illumination function does not operate.

      		 -

      Nothing

      [-]

      Wireless function

      (Wireless lock, unlock and panic system)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus]

      2. Certification ECU

      3. Main body ECU (instrument panel junction block assembly) [V1 bus]

      		 Wireless functions (wireless lock, unlock and panic system) do not operate. -

      Nothing

      [-]

      Ignition switch lighting function

      (Controls ignition switch illumination)

      1. Certification ECU

      2. Main body ECU (instrument panel junction block assembly) [V1 bus], Combination meter assembly

      3. Certification ECU

      • Ignition switch does not illuminate.

      • Ignition switch illumination does not turn off.

      		 -

      Nothing

      [-]
      Main body ECU (instrument panel junction block assembly) control

      Wireless/entry and start

      (A system which performs lock, unlock and alarm operations when the entry and start system key is in the detection area of the vehicle. This system controls remote control operations such as the lock and unlock operations.)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus]

      2. Certification ECU

      3. -

      • Wireless and entry and start control does not operate.

      • Door lock and unlock control does not operate.

      • Entry and start back door opener does not operate.

      		 -

      Nothing

      [-]

      Auto lock control

      (This system automatically locks all doors when the vehicle is being driven. It also automatically locks all doors according to the shift position.)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus]

      2. ECM [V1 bus]

      3. -

      		 Auto lock control does not operate. -

      Nothing

      [-]

      Daytime running lights (DRL) control

      (This system controls the daytime running lights when it determines that the vehicle is being driven.)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus]

      2. ECM [V1 bus]

      3. -

      		 DRL control does not operate. -

      Nothing

      [-]

      Back door opener

      (A system which releases the door latch (turns the opener motor on) when the switch embedded in the outside handle is turned on.)

      1. Main body ECU (instrument panel junction block assembly) [V1 bus]

      2. Combination meter assembly

      3. Certification ECU

      		 Back door opener control is prohibited. -

      Nothing

      [-]

      Manual memory function

      (A system which memorizes and recalls the positions of the seat, mirrors and steering wheel.)

      1. Main body ECU (instrument panel junction block assembly) [MS bus]

      2. Position control ECU assembly, Multiplex tilt and telescopic ECU

      3. Position control ECU assembly, Multiplex tilt and telescopic ECU

      		 Memory function operation is prohibited. -

      U0208

      U1115

      [Stored until the code is cleared with the intelligent tester.]
      Driving support ECU assembly

      Dynamic radar cruise control

      (Speed control when following the vehicle in front.)

      1. ECM [V1 bus]

      2. ECM [V1 bus], Spiral cable sub-assembly (steering angle sensor), Brake actuator assembly (VSC ECU), Yaw rate sensor, Driving support ECU assembly [V2 bus]

      3. Brake actuator assembly (VSC ECU), ECM[V1 bus]

      		 Dynamic radar cruise control system does not operate. Cruise main indicator blinks and the buzzer sounds (ACC control only).

      Nothing

      [-]

      Pre-crash safety system

      (Performs control of the seat belts and brakes before a collision.)

      1. Driving support ECU assembly [V2 bus]

      2. Spiral cable sub-assembly (steering angle sensor), Brake actuator assembly (VSC ECU), Yaw rate sensor

      3. Brake actuator assembly (VSC ECU), Seat belt control ECU

      		 Pre-crash safety system does not operate. Warning screens related to the pre-crash safety system are displayed on the multi-information display.

      U0122

      U0123

      U0126

      U1100

      [Stored until the code is cleared with the intelligent tester.]

      Lane keeping assist system

      (Controls the steering assist by following the lane markers.)

      1. Driving support ECU assembly [V2 bus]

      2. Power steering assembly, Brake actuator assembly (VSC ECU), Yaw rate sensor

      3. Power steering assembly

      		 Lane keeping assist system control does not operate. LKA indicator illuminates and the buzzer sounds (during LKA control only).

      U0122

      U0123

      U0131

      [Stored until the code is cleared with the intelligent tester.]
      Vehicle stability control VSC, ABS and TRC

      1. Brake actuator assembly (VSC ECU)

      2. ECM [V1 bus], Spiral cable sub-assembly (steering angle sensor), Yaw rate sensor

      3. -

      		 VSC and TRC operation prohibited. VSC and SLIP indicators and brake system warning light (yellow indicator) illuminate.

      U0073

      U0100

      U0123

      U0126

      [Stored until the code is cleared with the intelligent tester.]

      Pre-crash safety system

      (Requests seat belt activation when the vehicle condition is unstable.)

      1. Brake actuator assembly (VSC ECU)

      2. ECM [V1 bus], Spiral cable sub-assembly (steering angle sensor), Yaw rate sensor

      3. Seat belt control ECU

      		 Pre-crash safety system does not operate correctly. VSC, SLIP and ABS indicators and brake system warning light (yellow indicator) illuminate.

      Nothing

      [-]
      Buzzer

      1. Combination meter assembly

      2. Brake actuator assembly (VSC ECU)

      3. -

      		 - VSC, SLIP and ABS indicators and brake system warning light (yellow indicator) illuminate.

      Nothing

      [-]
      Vehicle stability control EPS

      1. Brake actuator assembly (VSC ECU)

      2. ECM [V1 bus], Spiral cable sub-assembly (steering angle sensor), Yaw rate sensor

      3. Power steering ECU assembly

      		 - VSC, SLIP and ABS indicators and brake system warning light (yellow indicator) illuminate.

      Nothing

      [-]
      Pre-crash safety

      Pre-crash safety system (brake-linked operation)

      (Tightens the seatbelts in order to increase occupant restraint under sudden braking or when the vehicle is uncontrollable (in a spin or drifting).)

      1. Seat belt control ECU

      2. Brake actuator assembly (VSC ECU)

      3. Seat belt control ECU

      		 Control stops. Warning screens related to the pre-crash safety system are displayed on the multi-information display.

      U0122

      [When stored as a current DTC, the code is stored until the ignition switch is turned off once, or until the code is cleared with the intelligent tester (past malfunctions can be cleared with the intelligent tester).]

      1. -

      2. Center airbag sensor assembly

      3. -

      		 -

      Pre-crash safety system (millimeter wave radar sensor-linked operation)

      (Tightens the seatbelts in order to increase occupant restraint when the driving support ECU determines that a collision is unavoidable according to information from the millimeter wave radar sensor.)

      1. Seat belt control ECU

      2. Driving support ECU assembly [V2 bus]

      3. Seat belt control ECU

      		 Control stops. Warning screens related to the pre-crash safety system are displayed on the multi-information display.

      U1101

      [When stored as a current DTC, the code is stored until the ignition switch is turned off once, or until the code is cleared with the intelligent tester (past malfunctions can be cleared with the intelligent tester).]
      AFS

      AFS Control

      (Moves the headlights up, down, left or right depending on the turning radius and yaw rate calculated from the steering angle and wheel speed values.)

      1. Headlight swivel ECU assembly (AFS ECU)

      2. Main body ECU (instrument panel junction block assembly) [V1 bus], ECM [V1 bus]

      3. -

      		 AFS operates normally. AFS OFF indicator blinks.

      U0142

      [Stored until the code is cleared with the intelligent tester.]

      1. Headlight swivel ECU assembly (AFS ECU)

      2. ECM [V1 bus], Spiral cable sub-assembly (steering angle sensor), Brake actuator assembly (VSC ECU)

      		 Lights are instructed to return to the front-facing position.

      U0100

      U0101

      U0126

      U0129

      U0130

      [Stored until the code is cleared with the intelligent tester.]
      EPS

      Electronic power steering system

      (Calculates the current to be used for the steering assist according to the torque sensor value and vehicle speed, and then operates the motor.)

      1. Power steering ECU assembly

      2. ECM [V1 bus]

      3. -

      		 No assist when the vehicle speed is 0 km/h (0 mph). Assist starts when the vehicle speed is 0.1 km/h (0 mph) or more. Before assist begins operation: EPS indicator illuminates. After assist begins operation: No indication.

      U0100

      [Stored until the code is cleared with the intelligent tester.]

      1. Power steering ECU assembly

      2. Brake actuator assembly (VSC ECU)

      3. -

      		 Temporary control is performed with the vehicle speed set to 100 km/h (62 mph). EPS indicator illuminates.

      U0129

      [Stored until the code is cleared with the intelligent tester.]

      αB control

      (Helps prevent the vehicle from drifting.)

      1. Brake actuator assembly (VSC ECU)

      2. Brake actuator assembly (VSC ECU)

      3. Power steering ECU assembly

      αB control is canceled


      • If VSC CAN data becomes invalid during control, control finishes.

      • If VSC CAN data becomes abnormal during control, control stops.

      		 EPS indicator illuminates.

      U0129

      [Stored until the code is cleared with the intelligent tester.]

      Lane keeping assist system

      (Performs assist by converting the target steering torque from the driving support ECU into the target torque for the electronic power steering system.)

      1. Driving support ECU assembly [V2 bus]

      2. Driving support ECU assembly [V2 bus]

      3. Power steering ECU assembly

      		 LKA control is prohibited. -

      U0104

      [Stored until the code is cleared with the intelligent tester.]
      Driver seat

      Memory recall function

      (Function to recall recorded positions according to the switch operation.)

      1. Main body ECU (instrument panel junction block assembly) [MS bus], Position control ECU assembly

      2. Multiplex tilt and telescopic ECU, Position control ECU assembly, ECM [V1 bus], Combination meter assembly

      3. Multiplex tilt and telescopic ECU, Position control ECU assembly

      		 Recall function does not operate. Nothing

      Nothing

      [-]
      Driver seat Memory function

      1. Main body ECU (instrument panel junction block assembly) [MS bus], Position control ECU assembly

      2. Position control ECU assembly

      3. -

      		 Recall function does not operate. Nothing

      Nothing

      [-]
      Tilt and Telescopic

      Memory and recall control

      (Controls the memorization of the steering wheel tilt and telescopic positions and operates the steering wheel tilt and telescopic function according to the seat position memory.)

      1. Main body ECU (instrument panel junction block assembly) [MS bus]

      2. Position control ECU assembly

      3. Multiplex tilt and telescopic ECU

      		 Memory and recall functions do not operate. Nothing

      B2621


      • [After communication returns until next time ignition switch is turned to ON]

      • [When DTC is stored]

      • [When DTC is cleared]

      Auto away/return control

      (Controls the auto away/return functions according to the KCC and IG signals.)

      1. Main body ECU (instrument panel junction block assembly) [MS bus]

      2. -

      3. Multiplex tilt and telescopic ECU

      		 Auto away/return function does not operate. Nothing

      B2621


      • [After communication returns until next time ignition switch is turned to ON]

      • [When DTC is stored]

      • [When DTC is cleared]

      Auto prohibition function

      (Prohibits automatic control during driving according to the vehicle speed signal.)

      1. Multiplex tilt and telescopic ECU

      2. Combination meter assembly

      3. -

      		 Auto away/return function does not operate. Nothing

      B2621


      • [Held until DTC cleared]

      B2624


      • [After communication returns until next time ignition switch is turned to ON]

      • [When DTC is stored]

      • [When DTC is cleared]

      Operation permission when parked

      (Permits operation when the vehicle is parked.)

      1. Main body ECU (instrument panel junction block assembly)

      2. -

      3. Multiplex tilt and telescopic ECU

      		 Recall function does not operate. Nothing

      Nothing

      [-]