ANTI-LOCK BRAKE SYSTEM(for Type A), 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 due to a malfunction in a power supply or charging system circuit such as the battery or alternator circuit, etc.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1417

High Power Supply Voltage Malfunction

+BS terminal voltage is more than 16.5 V for 1 second or more.

  • ABS NO. 2 fuse

  • Battery

  • Charging system

  • Power source circuit

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

WIRING DIAGRAM

Refer to DTC C1241.

Click here

CAUTION / NOTICE / HINT

Note:

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

PROCEDURE

  1. CHECK BATTERY

    1. Check the battery voltage.

      Standard Voltage

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    CHECK OR REPLACE CHARGING SYSTEM COMPONENT OR BATTERY

    for 1NR-FE:Click here

    for 1ZR-FE:Click here

    for 1ND-TV:Click here

    for 2ZR-FE:Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL)

    1. C278421C01

      *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 A120 skid control ECU (brake actuator assembly) connector.

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

      Standard Voltage

      Tester Connection

      Condition

      Specified Condition

      A120-25 (+BS) - Body ground

      Always

      11 to 14 V

      A120-25 (+BS) - A120-38 (GND1)

      Always

      11 to 14 V

      A120-28 (IG1) - Body ground

      Ignition switch ON

      11 to 14 V

      A120-28 (IG1) - A120-38 (GND1)

      Ignition switch ON

      11 to 14 V

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)

    OK

  3. RECONFIRM DTC

    1. Reconnect the A120 skid control ECU (brake actuator assembly) connector.

    2. Clear the DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs

    3. Turn the ignition switch off.

    4. Start the engine.

    5. Perform a road test.

    6. Check if the same DTC is output.

      Click here

      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.

      Click here

    A

    USE SIMULATION METHOD TO CHECK

    Click here

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY

    Click here