VEHICLE STABILITY CONTROL SYSTEM (for Hydraulic Brake Booster), 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 (housed in the master cylinder solenoid) stores this DTC and the fail-safe function prohibits ABS/VSC/TRC operation.

This DTC is stored when the IG1 terminal voltage deviates from the DTC detection condition due to a malfunction in the power supply or charging circuit such as the battery or generator circuit, etc.

This DTC is cleared when the IG1 terminal voltage returns to normal.

DTC Code DTC Detection Condition Trouble Area
C1417 The IG1 terminal voltage is 17.4 V or higher for 0.8 seconds or more.

  • Charging system

  • Power source circuit

  • Internal power supply circuit of the skid control ECU

WIRING DIAGRAM

Refer to DTC C1241 Click here.

INSPECTION PROCEDURE

Note

When replacing the master cylinder solenoid, perform calibration Click here.

PROCEDURE


  1. CHECK TERMINAL VOLTAGE (IG1)


    1. A00O4C5E28
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU)

      Disconnect the A7 skid control ECU connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A7-46 (IG1) - Body ground Ignition switch ON 11 to 14 V
      Result
      Result Proceed to
      OK A
      NG (for 1GR-FE) B
      NG (for 1KD-FTV) C

    B

    GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) Click here

    C

    GO TO CHARGING SYSTEM (ON-VEHICLE INSPECTION) Click here

    A

  2. RECONFIRM DTC


    1. Clear the DTC Click here.

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

      Result
      Result Proceed to
      DTC is not output A
      DTC is output (for LHD) B
      DTC is output (for RHD) C

    B

    REPLACE MASTER CYLINDER SOLENOID Click here

    C

    REPLACE MASTER CYLINDER SOLENOID Click here

    A

    USE SIMULATION METHOD TO CHECK Click here