C1924

C1924 STEERING ANGLE SENSOR

Description

Steering angle sensor signal is transmitted from steering angle sensor to RAS control unit via CAN communication.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. DTC REPRODUCTION PROCEDURE

With CONSULT
1.Turn the ignition switch from OFF to ON.
2.Perform "4WAS(MAIN)/RAS/HICAS" self-diagnosis.
Without CONSULT
1.Start the engine.
2.Perform the self-diagnosis. Diagnosis Description.
Is DTC "C1924" or "RAS warning lamp flickering pattern: 22" detected?
YES- Proceed to diagnosis procedure. .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK DRIVING

Drive for a short time.
Does the vehicle drive with front wheels in the straight-ahead position?
YES- GO TO 2.
NO- Adjust the wheel alignment. Rear Suspension Alignment Inspection.

2. PERFORM SELF-DIAGNOSIS OF ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

With CONSULT
Perform "ABS" self-diagnosis.
Is malfunction detected?
YES- Check malfunctioning circuit.
NO- GO TO 3.

3. PERFORM SELF-DIAGNOSIS

With CONSULT
Perform "4WAS(MAIN)/RAS/HICAS" self-diagnosis.
Is DTC "U1000" or "U1010" detected?
YES- Check malfunctioning circuit.
NO- GO TO 4.

4. PERFORM SELF-DIAGNOSIS

With CONSULT
1.Turn the ignition switch from OFF to ON.
2.Perform "4WAS(MAIN)/RAS/HICAS" self-diagnosis.
Without CONSULT
1.Start the engine.
2.Perform the self-diagnosis. Diagnosis Description.
Is DTC "C1924" or "RAS warning lamp flickering pattern: 22" detected?
YES- Replace RAS control unit. RAS Control Unit.
NO- GO TO 5.

5. CHECK INFORMATION

With CONSULT
1.Select "DATA MONITOR" of "4WAS(MAIN)/RAS/HICAS".
2.Check the "DATA MONITOR" value of each DTC detected with the self-diagnosis function. With Rear Active Steer.
Is each data standard?
YES- Check pin terminal and connection of each harness connector for non-standard conditions.
NO- Replace RAS control unit. RAS Control Unit.


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".