22-1

VSA DTC Troubleshooting: 21-1, 22-1, 23-1, 24-1

DTC 21:

Right-Front Magnetic Encoder Malfunction

DTC 22:

Left-Front Magnetic Encoder Malfunction

DTC 23:

Right-Rear Magnetic Encoder Malfunction

DTC 24:

Left-Rear Magnetic Encoder 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. Test-drive the vehicle at 31 mph (50 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 -

Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.

5. Inspect the appropriate magnetic encoder for damage, debris, and correct installation.





Is the magnetic encoder surface OK?

YES -

Go to step 6.

NO -

Remove the debris from the magnetic encoder, or replace the hub bearing unit:

- Front: Remove or replace the front hub bearing unit.
- Rear: Remove or replace the rear hub bearing unit.

6. Update the VSA modulator-control unit if it does not have the latest software Testing and Inspection.

7. Test-drive the vehicle at 31 mph (50 km/h) or more.

NOTE: Drive the vehicle on the road, not on a lift.

8. Check for DTCs with the HDS.

Is DTC 21, 22, 23, or 24 indicated?

YES -

Check for loose terminals in the VSA modulator-control unit 46P 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.