Diesel Data: Automotive Repair

VSA System




Control System DTCs

VSA DTC Troubleshooting: 84-11

DTC 84-11 : VSA Sensor Neutral Position Memorization Incomplete

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Reading and Clearing Diagnostic Trouble Codes.

1. VSA sensor neutral position memorization:

VSA sensor neutral position memorization
-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. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

-5. Check for DTCs with the HDS.

Is DTC 84-11 indicated?
-YES- Go to step 2.
-NO- Troubleshooting is complete.

2. VSA modulator-control unit check (update):

VSA modulator-control unit check (update)
-1. Update the VSA modulator-control unit if it does not have the latest software Programming and Relearning.

-2. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

-3. Check for DTCs with the HDS.

Is DTC 84-11 indicated?
-YES- Check for loose terminals in the VSA modulator-control unit 22P connector. If the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit Service and Repair.
-NO- Troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.