DTC 27

DTC 27: Steering Angle Sensor
1. Check the all four tires size, pressure, difference of wearing tire and the wheel alignment.
Are 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 correctly, and recheck by test-driving.

2. Turn the ignition switch ON (II).
3. Clear the DTC using the HDS.
4. Slowly run the vehicle straight without operation the steering wheel for 10 ft (3 m) or more, then park the vehicle with holding the steering wheel at straight position.
5. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.
Is it within ± 3°?
YES - Go to step 7.
NO - Go to step 6.

6. Do the VSA sensor neutral position memorization. Programming and Relearning
7. Turn the ignition switch OFF, then disconnect the HDS.
8. Test-drive the vehicle around a number of comers.
9. Verify the DTC.
Is DTC 27 indicated?
YES - Go to step 10.
NO - If the DTC 86 is indicated, do the DTC 86 troubleshooting. If no DTCs are indicated, the system is OK at this time.

10. Turn the ignition switch OFF.
11. Substitute a know-good steering angle sensor.

NOTE: Make sure the steering angle sensor and combination switch is mounted properly.

12. Turn the ignition switch ON (II).
13. Clear the DTC using the HDS.
14. Do the VSA sensor neutral position memorization. Programming and Relearning
15. Turn the ignition switch OFF, then disconnect the HDS.
16. Test-drive the vehicle around a number of corners.
17. Verify the DTC.
Is DTC 27 indicated?
YES - Go to step 18.
NO - Replace the original steering angle sensor.

18. Turn the ignition switch OFF.
19. Substitute a known-good sensor cluster.

NOTE: Check the sensor cluster mounting bracket is not bent or twisted, and make sure the sensor cluster is mounted properly and fixed.

20. Turn the ignition switch ON (II).
21. Clear the DTC using the HDS.
22. Turn the ignition switch OFF, then disconnect the HDS.
23. Test-drive the vehicle around a number of comers.
24. Verify the DTC.
Is DTC 27 indicated?
YES - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.
NO - Replace the original sensor cluster.