DTC 121, 122, 123, 124: VSA Solenoid Clear the DTC using the HDS. Disconnect the HDS from the 16P DLC. Turn the ignition switch OFF, then turn it ON (II) again. Test-drive the vehicle. Does the VSA indicator come on, and is DTC 121, 122, 123, or 124 indicated?
YES | - | Check for loose terminals in the VSA control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and recheck.■
NO | - | Intermittent failure; the system is OK at this time.■