DTC 131

DTC 131: Yaw Rate Sensor (Software)

NOTE: Driving on an extremely angled road can cause this DTC.

1. Turn the ignition switch to ON (II).
2. Check for DTCs with the HDS.

Is DTC 91 indicated with DTC 131 at the same time?

YES - Do the DTC 91 troubleshooting.

NO - Go to step 3.

3. Turn the ignition switch to LOCK (0).
4. Check that the yaw rate-lateral acceleration sensor is properly mounted.

Is the yaw rate-lateral acceleration sensor installation OK?

1YES - Go to step 5.

NO - Reinstall the yaw rate-lateral acceleration sensor, and recheck by test-driving.

5. Put the vehicle on a level surface.
6. Turn the ignition switch to ON (II).
7. Check the YAW RATE SENSOR in the VSA DATA LIST with the HDS.

Is the indicated value 0±5°/s?

YES - Go to step 8.

NO - Replace the yaw rate-lateral acceleration sensor.

8. Clear the DTC with the HDS.
9. Test-drive the vehicle around a number of corners.
10. Check for DTCs with the HDS.

Is DTC 131 indicated?

YES - Go to step 11.

NO - Intermittent failure; the most probable cause is that the vehicle has been driven on an extremely angled road. The system is OK at this time.

11. Turn the ignition switch to LOCK (0).
12. Substitute a known-good yaw rate-lateral acceleration sensor.
13. Turn the ignition switch to ON (II).
14. Clear the DTC with the HDS.
15. Test-drive the vehicle around a number corners.
16. Check for DTCs with the HDS.

Is DTC 131 indicated?

YES - Replace the VSA modulator-control unit.

NO - Replace the original yaw rate-lateral acceleration sensor.