VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1417

DTC Code DTC Name
C1417 High Power Supply Voltage Malfunction

DESCRIPTION

If a malfunction is detected in the power supply circuit, the skid control ECU (brake actuator assembly) stores this DTC and the fail-safe function prohibits ABS operation.

This DTC is stored when the +BS terminal voltage deviates from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or alternator circuit, etc.

The DTC is canceled when the +BS terminal voltage returns to normal.

DTC No. DTC Detection Condition Trouble Area
C1417

Any of the following is detected:


  1. The +BS terminal voltage is 17.4 V or more for 0.8 seconds or more.

  2. When voltage at terminal +BS is 17.4 V or higher, power supply voltage of master cylinder pressure sensor is cut for 0.2 seconds or more.

  • Charging system

  • Skid control ECU (brake actuator assembly)

  • Wire harness or connector

  • Battery

WIRING DIAGRAM

A01W05LE03

CAUTION / NOTICE / HINT

Note


  • When replacing the skid control ECU (brake actuator assembly), perform zero point calibration and store system information Click here.

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

PROCEDURE


  1. INSPECT BATTERY


    1. Check the battery voltage.

      Standard Voltage
      11 to 14 V
      Result
      Result Proceed to
      OK A
      NG (for 2AR-FE) B
      NG (for 2GR-FE) C
      NG (for 6AR-FSE) D

    B

    CHECK OR REPLACE CHARGING SYSTEM OR BATTERY Click here

    C

    CHECK OR REPLACE CHARGING SYSTEM OR BATTERY Click here

    D

    CHECK OR REPLACE CHARGING SYSTEM OR BATTERY Click here

    A

  2. CHECK HARNESS AND CONNECTOR (+BS TERMINAL)


    1. A01W4UXE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU (Brake Actuator Assembly))

      Make sure that there is no looseness at the locking part and the connecting part of the connectors.

    2. Disconnect the A40 skid control ECU (brake actuator assembly) connector.

    3. Turn the engine switch on (IG).

    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      A40-38 (+BS) - Body ground Engine switch on (IG) 11 to 14 V
      A40-38 (+BS) - A40-25 (GND1) Engine switch on (IG) 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (+BS CIRCUIT)

    OK

  3. RECONFIRM DTC


    1. Turn the engine switch off.

    2. Reconnect the A40 skid control ECU (brake actuator assembly) connector.

    3. Clear the DTCs Click here.

    4. Turn the engine switch off.

    5. Start the engine.

    6. Perform a road test.

    7. Check if the same DTC is output Click here.

      Result
      Result Proceed to
      DTC C1417 is not output. A
      DTC C1417 is output. B

      Tech Tips

      If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts Click here.


    A

    USE SIMULATION METHOD TO CHECK Click here

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here