DTC 123
DTC 123: VSA Solenoid1. Clear the DTC.
2. Test-drive the vehicle.
Does the VSA indicator come on, and is DTC 121, 122, 123 or 124 indicated?
YES - Check for loose terminal 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.