Diagnostic Test
- INSPECT THE WHEEL ALIGNMENT, STEERING COLUMN AND INTERMEDIATE SHAFT FOR INCORRECT INSTALLATION OR DAMAGE NOTE:
If available, check the vehicle repair history for collision damage.
- Perform any Technical Service Bulletins (TSBs) that may apply
- Inspect the vehicle for proper wheel alignment.
- Inspect the vehicle for damage causing tracking problems or steering wheel misalignment.
- Inspect the steering column and intermediate shaft for damage.
Were any problems found?
Yes
- Repair as necessary.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Go To 2
- CHECK THE STEERING ANGLE
- Turn steering wheel so wheels point in a straight ahead position.
- With scan tool, graph the steering angle while slowly rotating steering wheel from lock to lock.
Is the Steering Angle reading within ±15°?
Yes
- Go To 3
No
- Replace the Clockspring (SAS) in accordance with the Service Information. Refer to CLOCKSPRING, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
- CHECK STEERING ANGLE CHANGE
- Turn steering wheel so wheels point in a straight ahead position.
- With scan tool, graph the steering angle to see while rotating wheel from lock to lock.NOTE:
Sensor damage can occur if wheel is turned over 720°.
- Rotate steering wheel to the right and the degrees will decrease and rotating steering wheel to the left the degrees will increase.
Did the steering angle change accordingly and display lower then 720° from lock to lock with no erratic signal behavior?
Yes
- Replace the Anti-lock Brake System (ABS) Module in accordance with the Service Information. Refer to MODULE, ANTI-LOCK BRAKE SYSTEM, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Go To 4
- CHECK THE CLOCKSPRING (SAS) INSTALLATION WARNING:
To avoid serious or fatal injury on vehicles equipped with airbags, disable the Supplemental Restraint System (SRS). Refer to RESTRAINTS - SERVICE INFORMATION before attempting any steering wheel, steering column, airbag, seat belt tensioner, impact sensor, or instrument panel component diagnosis or service. Disconnect and isolate the battery negative (ground) cable, then wait two minutes for the system capacitor to discharge before performing further diagnosis or service. This is the only sure way to disable the SRS. Failure to take the proper precautions could result in accidental airbag deployment.
NOTE:If available, check the vehicle repair history for collision damage.
NOTE:Proper Clockspring (SAS) installation is crucial for proper operation.
- Turn the ignition off.
- Verify that the Clockspring (SAS) is properly installed. Refer to CLOCKSPRING, STANDARD PROCEDURE
.
Is the Clockspring (SAS) properly installed?
Yes
- Replace the Steering Control Module (SCM) in accordance with the Service Information. Refer to MODULE, STEERING COLUMN, REMOVAL .
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .
No
- Repair as necessary.
- Perform the ABS VERIFICATION TEST. Refer to STANDARD PROCEDURE .