DTC    C1428    Motor Circuit Malfunction

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DESCRIPTION


DTC Code
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 C0273, C0274 and C1361 (Click here).

INSPECTION PROCEDURE

NOTICE:
When replacing the brake actuator assembly, perform zero point calibration (Click here).

1.INSPECT SKID CONTROL ECU

  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 A16 or A17 skid control ECU connector.



    E175972E04

  1. Measure the resistance according to the value(s) in the table below.
    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Skid Control ECU)

    Standard Resistance:
    for LHD:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A16-13 (GND2) - Body ground
    		Always
    		Below 1 Ω
    for RHD:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A17-13 (GND2) - Body ground
    		Always
    		Below 1 Ω



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE BRAKE ACTUATOR ASSEMBLY (Click here)