VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C1428

DTC Code DTC Name
C1428 Motor Circuit Malfunction

DESCRIPTION

DTC NO. DTC Detection Condition Trouble Area
C1428 With the ABS motor relay OFF and the ABS motor fail safe relay ON, an open in the motor circuit continues for 2 seconds or more. Brake actuator assembly (Motor circuit)

WIRING DIAGRAM

Refer to DTCs C146C, C146D and C1361 Click here.

CAUTION / NOTICE / HINT

Note


  • When replacing the brake actuator assembly (skid control ECU), perform zero point calibration Click here.

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

PROCEDURE


  1. CHECK HARNESS AND CONNECTOR (GND2)


    1. Turn the ignition switch off.

    2. Make sure that there is no looseness at the locking part and the connecting part of the connectors.

    3. A005KDHE01
      Text in Illustration
      *A except LHD with CVT
      *B for LHD with CVT
      *a

      Front view of wire harness connector

      (to Brake actuator assembly (Skid control ECU))

      Disconnect the A54 or A56 brake actuator assembly (skid control ECU) connector.

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

      Standard Resistance
      except LHD with CVT
      Tester Connection Condition Specified Condition
      A54-13 (GND2) - Body ground Always Below 1 Ω
      for LHD with CVT
      Tester Connection Condition Specified Condition
      A56-13 (GND2) - Body ground Always Below 1 Ω

    5. Reconnect the A54 or A56 brake actuator assembly (skid control ECU) connector.


    A

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    B

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here

    C

    REPLACE BRAKE ACTUATOR ASSEMBLY (SKID CONTROL ECU) Click here