Diesel Data: Automotive Repair

Manufacturer Code Charts: 122




VSA DTC Troubleshooting: 121, 122, 123, 124

DTC 121, 122, 123, 124:

VSA Solenoid

1. Turn the ignition switch to ON (II).

2. Check for DTCs with the HDS.

Is DTC 54 indicated with DTC 121, 122, 123, or 124 at the same time?

YES -

Do the troubleshooting for DTC 54, and recheck.�

NO -

Go to step 3.

3. Clear the DTCs with the HDS.

4. Turn the ignition switch to LOCK (0) and then back to ON (II).

5. Check for DTCs with the HDS.

Is DTC 121, 122, 123, or 124 indicated?

YES -

Replace the VSA modulator-control unit Service and Repair.�

NO -

The system is OK at this time.�