Manufacturer Code Charts: 27

VSA DTC Troubleshooting: 27

DTC 27:

Steering Angle Sensor (Hardware)

1. 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 2.

NO -

Make sure the suspension is not modified, and adjust the wheel alignment, and recheck by test-driving.�

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

3. Clear the DTC with the HDS.

4. Test-drive the vehicle around a number of corners.

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

5. Check for DTCs with the HDS.

Is DTC 27 indicated?

YES -

Go to step 6.

NO -

Intermittent failure, the system is OK at this time. Check for loose terminals between the steering angle sensor 5P connector and the VSA modulator-control unit 46P connector. Refer to intermittent failures troubleshooting Reading and Clearing Diagnostic Trouble Codes.

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

7. Disconnect the steering angle sensor 5P connector Service and Repair.

8. Disconnect the VSA modulator-control unit 46P connector Service and Repair.

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

10. Measure the voltage between body ground and VSA modulator-control unit 46P connector terminals No. 5, No. 17, No. 32, and No. 35 individually.





Is there 0.1 V or more?

YES -

Repair a short to power in the wire between the VSA modulator-control unit and the steering angle sensor.�

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 46P connector terminals No. 5, No. 17, and No. 32 individually.





Is there continuity?

YES -

Repair a short to body ground in the wire between the VSA modulator-control unit and the steering angle sensor.�

NO -

Go to step 13.

13. Check for continuity between the VSA modulator-control unit 46P connector terminals and steering angle sensor 5P connector terminals individually (see table).









Is there continuity?

YES -

Go to step 14.

NO -

Repair an open in the wire between the VSA modulator-control unit and the steering angle sensor.�

14. Substitute a known-good steering angle sensor Service and Repair.

15. Reconnect all connectors.

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

17. Clear the DTC with the HDS.

18. Test-drive the vehicle around a number of corners.

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

19. Check for DTCs with the HDS.

Is DTC 27 indicated?

YES -

Check for loose terminals in the VSA modulator-control unit 46P connector. If necessary, substitute a known-good VSA modulator-control unit Service and Repair, then retest. If the VSA modulator-control unit was substituted, go to step 1.

NO -

Check for loose terminals in the steering angle sensor 5P connector. If the connections are OK, replace the original steering angle sensor Service and Repair.�