VSA System

VSA DTC Troubleshooting: 21, 22, 23, 24

DTC 21, 22, 23, 24: Pulser

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Test-drive the vehicle at 19 mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.

4. Check for DTCs with the HDS.

Is DTC 21, 22, 23, or 24 indicated?
YES - Go to step 5.

NO - The system is OK at this time.


5. Inspect the appropriate pulser (see table). Testing and Inspection





Is the pulser OK?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, Service and Repair and retest.

NO - Replace the pulser.