Operation CHARM: Car repair manuals for everyone.

DTC 123

DTC 123: TCS Solenoid
1. Clear the DTC.
2. Test-drive the vehicle.
Does the TCS indicator come on, and is DTC 121, 122, 123 or 124 indicated?
YES - Check for loose terminal in the ABS/TCS control unit 47P connector. If necessary, substitute a known-good ABS/TCS modulator-control unit, and recheck.
NO - Intermittent failure; the system is OK at this time.