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VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1417

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DTC Code DTC Name
C1417 High Power Supply Voltage Malfunction
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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 IG1 terminal voltage deviates due to a malfunction in the power supply or charging circuit such as the battery or alternator circuit, etc.

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

DTC No. Detection Item DTC Detection Condition Trouble Area
C1417 High Power Supply Voltage Malfunction The IG1 terminal voltage is 17.4 V or more for 0.8 seconds or more.

  • Battery

  • Charging system

  • Power source circuit

  • Internal power supply circuit of the skid control ECU (brake actuator assembly)
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WIRING DIAGRAM

Refer to DTC C1241.

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CAUTION / NOTICE / HINT

Note:

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

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

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PROCEDURE


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    CHECK BATTERY


    1. Check the battery voltage.

      Standard Voltage
      Tester Connection Condition Specified Condition
      Battery Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

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    CHECK HARNESS AND CONNECTOR (IG1 TERMINAL)


    1. B0066KWC25
      *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 connector.

    2. Disconnect the A15 skid control ECU (brake actuator assembly) connector.

    3. Start the engine.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A15-34 (IG1) - Body ground Engine running 11 to 14 V
      A15-34 (IG1) - A15-1 (GND1) Engine running 11 to 14 V
      Result
      Proceed to
      OK
      NG

    • OKClick here
    • NG

      REPAIR OR REPLACE HARNESS OR CONNECTOR (IG1 CIRCUIT)

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    RECONFIRM DTC


    1. Turn the engine switch off.

    2. Reconnect the A15 skid control ECU (brake actuator assembly) connector.

    3. Clear the DTCs.

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      1. Chassis > ABS/VSC/TRC > Clear DTCs


    4. Turn the engine switch off.

    5. Start the engine.

    6. Perform a road test.

    7. Check if the same DTC is output.

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      1. Chassis > ABS/VSC/TRC > Trouble Codes


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

      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.

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