DTC 121

DTC 121, 122, 123, 124: VSA Solenoid

1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then disconnect the HDS.
4. Test-drive the vehicle.
5. Check for DTCs with the HDS.

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

YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.

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