C1203

TROUBLE DIAGNOSIS FOR SYSTEM


DTC C1203 ABS SYSTEM


DIAGNOSTIC PROCEDURE
- Check the following if "ABS SYSTEM [C1203]" is displayed in self-diagnosis results of CONSULT-III.
1.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to Scan Tool Testing and Procedures, "CONSULT-III Function (ABS)".
Is any malfunction detected by self-diagnosis?
YES - Check the malfunctioning system.
NO - GO TO 2.
2.CHECK DTC AFTER DRIVING
1. Turn ignition switch "OFF".
2. Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.
3. Make sure that ABS warning lamp turns OFF.
4. Perform erase self-diagnosis results. Refer to Scan Tool Testing and Procedures.
5. Stop vehicle and turn ignition switch "OFF".
6. Turn ignition switch "ON".
7. Perform self-diagnosis.
Is the "ABS SYSTEM [C1203]" displayed?
YES - GO TO 3.
NO INSPECTION END
3.CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to Pinout Values and Diagnostic Parameters.
OK or NG
OK - GO TO 4.
NG - Check AWD control unit pin terminals for damage or loose connection with harness connector. If any items are damaged, repair or replace damaged parts.
4.CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK INSPECTION END
NG - Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to Scan Tool Testing and Procedures.