DTC 108-21

DTC 108-21: Steering Angle Sensor Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Do the VSA sensor neutral position memorization. Programming and Relearning
4. Test-drive the vehicle.
5. Check for DTCs with the HDS.

Is DTC 108-21 indicated?

YES - Go to step 6.

NO - Intermittent failure, the system is OK at this time.

6. Turn the ignition switch to LOCK (0).
7. Substitute a known-good steering angle sensor.
8. Turn the ignition switch to ON (II).
9. Clear the DTC with the HDS.
10. Test-drive the vehicle.
11. Check for DTCs with the HDS.

Is DTC 108-21 indicated?

YES - Replace the VSA modulator-control unit.

NO - Replace the original steering angle sensor.