C1929

C1929 ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)





Description
The ABS actuator and electric unit (control unit) and the RAS control unit exchange signals via the CAN communication line.




DTC Logic

DTC DETECTION LOGIC

DTC Detection Logic:

DTC CONFIRMATION PROCEDURE
1.DTC REPRODUCTION PROCEDURE
With CONSULT-III
1. Turn the ignition switch from OFF to ON.
2. Perform RAS control unit self-diagnosis.
Without CONSULT-III
1. Start the engine.
2. Perform the self-diagnosis. Refer to Diagnosis Description.
Is DTC "C1929" or "RAS warning lamp flickering pattern:26" detected?
YES - Proceed to diagnosis procedure. Refer to C1929.
NO - INSPECTION END




Diagnosis Procedure
1.PERFORM ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
With CONSULT-III
Perform ABS actuator and electrical unit (control unit) self-diagnosis.
Is any error system detected?
YES - Check the error system.
NO - GO TO 2.
2.PERFORM SELF-DIAGNOSIS
With CONSULT-III
Perform RAS control unit self-diagnosis.
Is DTC "U1000" or "U1010" detected?
YES - Check the error system.
NO - GO TO 3.
3.PERFORM SELF-DIAGNOSIS
With CONSULT-III
1. Turn the ignition switch from OFF to ON.
2. Perform RAS control unit self-diagnosis.
Without CONSULT-III
1. Start the engine.
2. Perform the self-diagnosis. Refer to Diagnosis Description.
Is DTC "C1929" or "RAS warning lamp flickering pattern:26" detected?
YES - Replace RAS control unit. Refer to Exploded View.
NO - GO TO 4.
4.INFORMATION CHECK
With CONSULT-III
Check the "DATA MONITOR" value of each DTC detected with the self-diagnosis function. Refer to RAS Control Unit.
Is each data the standard value?
YES - Check that there is no malfunction in each harness connector pin terminal or disconnection.
NO - Replace RAS control unit. Refer to Exploded View.




Special Repair Requirement

BEFORE REPLACING RAS CONTROL UNIT
- Record the self-diagnosis results (history).

CAUTION:
- Never erase the memory (history) of self-diagnosis results when replacing RAS control unit after diagnosis.
- Erase the memory of the self-diagnosis results (record) after printing out or recording all the values of "DATA MONITOR".