Click here

VEHICLE STABILITY CONTROL SYSTEM (for Vacuum Brake Booster), Diagnostic DTC:C1417

Click here
Click here Click here
DTC Code DTC Name
C1417 High Power Supply Voltage Malfunction
Click here

DESCRIPTION

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

The 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.

  • ECU-IG NO. 1 fuse

  • Battery

  • Charging system

  • Power source circuit

  • Internal power supply circuit of the skid control ECU
Click here

WIRING DIAGRAM

Refer to DTC C1241 (Click here).

Click here

INSPECTION PROCEDURE

Note:

  • When replacing the brake actuator assembly, perform calibration (Click here).

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

Click here

PROCEDURE


  1. Click here

    CHECK TERMINAL VOLTAGE (IG1)


    1. Disconnect the A6 skid control ECU connector.

    2. A01DMHLE08

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      A6-34 (IG1) - Body ground Ignition switch ON 11 to 14 V
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU)

  2. Click here

    RECONFIRM DTC


    1. Clear the DTCs (Click here).

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

      Table 2. Result
      Result Proceed to
      DTC is output A
      DTC is not output B

  3. Click here

    USE SIMULATION METHOD TO CHECKClick here

  4. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

  5. Click here

    REPLACE BRAKE ACTUATOR ASSEMBLYClick here