158-1

Control System DTCs

VSA DTC Troubleshooting: 158-1

DTC 158-01 : ECU Software Update Failure

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 modulator-control unit check (update):

VSA modulator-control unit check (update)
-1. Update the VSA modulator-control unit 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 158-01 indicated?
-YES- Replace the VSA modulator-control unit Service and Repair.
-NO- Troubleshooting is complete.