DTC 121-XX*
DTC 121-xx*: VSA Solenoid Valve MalfunctionDTC 122-xx*: VSA Solenoid Valve Malfunction
DTC 123-xx*: VSA Solenoid Valve Malfunction
DTC 124-xx*: VSA Solenoid Valve Malfunction
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
4. Check for DTCs with the HDS.
Is DTC 121-xx, 122-xx, 123-xx, or 124-xx indicated?
YES - Replace the VSA modulator-control unit.
NO - Intermittent failure, the system is OK at this time.