DTC    C1428    Motor Circuit Malfunction


DESCRIPTION


DTC NO.
DTC Detection Condition
Trouble Area
C1428
While the ABS motor is not operating, an open in the motor circuit continues for 2 seconds or more.
  1. Harness or connector
  2. Brake actuator assembly

WIRING DIAGRAM

Refer to DTCs C0273 and C0274 (Click here).

INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.CHECK HARNESS AND CONNECTOR (GND2 TERMINAL)

  1. Turn the ignition switch off.

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

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

  1. Check the connector case and terminals for deformation and corrosion.

    OK:
    No deformation or corrosion.


    C231272E12

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    A15-13 (GND2) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration 
    *a
    		Front view of wire harness connector
    (to Brake Actuator Assembly (Skid Control ECU))

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



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)