ANTI-LOCK BRAKE SYSTEM, Diagnostic DTC:C146E

DTC Code DTC Name
C146E Open in ABS Solenoid Relay Circuit

DESCRIPTION

The solenoid relay supplies power to the ABS solenoid.

After the ignition switch is turned to ON the solenoid is determined to be normal by the initial check self-diagnosis, the relay switches on. If any open or short circuits are detected, the relay switches off.

This DTC may be set if the voltage supply to the solenoid relay (+BS) falls below the DTC detection threshold due to the battery or alternator outputs being insufficient.

DTC No. DTC Detection Conditions Trouble Areas
C146E

When either of following conditions (1 or 2) detected:


  1. Malfunction in skid control ECU continues for 0.056 seconds or more.

  2. Voltage supply to solenoid valve stops for 0.056 seconds or more.

  • ABS NO. 2 fuse

  • ABS solenoid relay circuit

  • Skid control ECU (brake actuator assembly)

WIRING DIAGRAM

Refer to C1241 Click here.

CAUTION / NOTICE / HINT

Note

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (BATTERY - SKID CONTROL ECU - BODY GROUND)


    1. A01VL2IE01
      Text in Illustration
      *A for LHD with CVT, and RHD
      *B for LHD except CVT
      *a

      Front view of wire harness connector

      (to Skid Control ECU)

      Disconnect the skid control ECU connector.

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

      Standard Voltage (for LHD with CVT, and RHD)
      Tester Connection Condition Specified Condition
      A78-1 (+BS) - Body ground Always 11 to 14 V
      Standard Voltage (for LHD except CVT)
      Tester Connection Condition Specified Condition
      A79-1 (+BS) - Body ground Always 11 to 14 V

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

      Standard Resistance (for LHD with CVT, and RHD)
      Tester Connection Condition Specified Condition
      A78-13 (GND1) - Body ground Always Below 1 Ω
      A78-26 (GND2) - Body ground Always Below 1 Ω
      Standard Resistance (for LHD except CVT)
      Tester Connection Condition Specified Condition
      A79-13 (GND1) - Body ground Always Below 1 Ω
      A79-26 (GND2) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  2. RECONFIRM DTC


    1. Clear the DTCs Click here.

    2. Start the engine.

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

      Result
      Result Proceed to
      DTC is output A
      DTC output (for LHD) B
      DTC output (for RHD) C

    A

    CHECK FOR INTERMITTENT PROBLEMS Click here

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here

    C

    REPLACE BRAKE ACTUATOR ASSEMBLY Click here