121-1
VSA DTC Troubleshooting: 121, 122, 123, 124
DTC 121:
VSA Solenoid Valve Malfunction
DTC 122:
VSA Solenoid Valve Malfunction
DTC 123:
VSA Solenoid Valve Malfunction
DTC 124:
VSA Solenoid Valve Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Reading and Clearing Diagnostic Trouble Codes.
1. Turn the ignition switch to ON (II), or press the engine start/stop button to select the ON mode.
2. Clear the DTC with the HDS.
3. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
4. Test-drive the vehicle at 19 mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
5. Check for DTCs with the HDS.
Is DTC 121, 122, 123, or 124 indicated?
YES -
Go to step 6.
NO -
Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.
6. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection.
7. Turn the ignition switch to LOCK (0), or press the engine start/stop button to select the OFF mode.
8. Test-drive the vehicle at 19 mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.
9. 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 the VSA modulator-control unit was updated and the symptom/indication is still present, replace the VSA modulator-control unit Service and Repair.
NO -
If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.