Manufacturer Code Charts: 26

VSA DTC Troubleshooting: 25, 26, 104

DTC 25: Yaw Rate Sensor

DTC 26: Lateral Acceleration Sensor

DTC 104: Sensor Cluster

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

2. Clear the DTC with the HDS.

3. Test-drive the vehicle around a number of corners.
NOTE: Drive the vehicle on the road, not on a lift.

4. Check for DTCs with the HDS.

Is DTC 25, 26, or 104 indicated?
YES - Go to step 5.

NO - Intermittent failure, the system is OK at this time. Check for loose terminals between the sensor cluster 6P connector and the VSA modulator-control unit 47P connector. Refer to intermittent failures troubleshooting. Initial Inspection and Diagnostic Overview


5. Check the size, air pressure, and the amount of wear of all four tires, and check the wheel alignment. Service and Repair

Is the tire condition and wheel alignment OK?
YES - Go to step 6.

NO - Make sure the suspension is not modified, and adjust the wheel alignment correctly, and recheck by test-driving.


6. Turn the ignition switch to LOCK (0).

7. Disconnect the sensor cluster 6P connector. Service and Repair

8. Disconnect the VSA modulator-control unit 47P connector. Service and Repair

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

10. Measure the voltage between body ground and VSA modulator-control unit 47P connector terminals No. 6, No. 25, No. 29, and No. 31 individually.

Is there 0.1 V or more?
YES - Repair short to power in the wire between the VSA modulator-control unit and the sensor cluster.

NO - Go to step 11.






11. Turn the ignition switch to LOCK (0).

12. Check for continuity between body ground and VSA modulator-control unit 47P connector terminals No. 6, No. 25, No. 29, and No. 31 individually.

Is there continuity?
YES - Repair short to body ground in the wire between the VSA modulator-control unit and the sensor cluster.

NO - Go to step 13.






13. Check for continuity between VSA modulator-control unit 47P connector terminals No. 6, No. 25, No. 29, and No. 31 and sensor cluster 6P connector terminals No. 1, No. 3, No. 2, and No. 5 individually.

Is there continuity?
YES - Go to step 14.

NO - Repair open in the wire between the VSA modulator-control unit and the sensor cluster.






14. Substitute a known-good sensor cluster. Service and Repair

15. Reconnect all connectors.

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

17. Clear the DTC with the HDS.

18. Do the VSA sensor neutral position memorization. Programming and Relearning

19. Test-drive the vehicle around a number of corners.
NOTE: Drive the vehicle on the road, not on a lift.

20. Check for DTCs with the HDS.

Is DTC 25, 26, or 104 indicated?
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 - If any DTCs are indicated, go to the indicated DTCs troubleshooting If DTC is not indicated, replace the original sensor cluster.. Service and Repair