DTC 134: Steering Angle Sensor Malfunction

NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see GENERAL TROUBLESHOOTING INFORMATION ).

Turn the ignition switch to ON (II).
Check for DTCs with the HDS.
Is DTC 91 indicated with DTC 134 at the same time?

YES -Do the DTC 91 troubleshooting (see DTC 91: VSA ACTIVATION TIME TOO LONG ).

NO -Go to step 3.
Put the vehicle on a level surface, and center the steering wheel spokes.
Check STEERING ANGLE in the VSA DATA LIST with the HDS.
With the front wheels in the straight ahead position, is STEERING ANGLE 0°±5°?

YES -Go to step 5.

NO -Check the installation of the steering angle sensor (see STEERING ANGLE SENSOR REPLACEMENT ). If installation is good, do the VSA sensor neutral position memorization (see VSA SENSOR NEUTRAL POSITION MEMORIZATION ).
Check the wheel alignment see WHEEL ALIGNMENT ).
Is the wheel alignment within the specification?

YES -Go to step 6.

NO -Make sure the suspension is not modified, adjust the wheel alignment correctly, then go to step 6.
Turn the ignition switch to ON (II).
Clear the DTCs with the HDS.
Test-drive the vehicle around a number of corners.
NOTE: Drive the vehicle on the road, not on a lift.
Check for DTCs with the HDS.
Is DTC 134 indicated?

YES -Go to step 10.

NO -Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting (see INTERMITTENT FAILURES ).
Update the VSA modulator-control unit if it does not have the latest software (see VSA MODULATOR-CONTROL UNIT UPDATE ).
Test-drive the vehicle around a number of corners.
NOTE: Drive the vehicle on the road, not on a lift.
Check for DTCs with the HDS.
Is DTC 134 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 (see VSA MODULATOR-CONTROL UNIT REMOVAL AND INSTALLATION ).

NO -If the VSA modulator-control unit was updated, troubleshooting is complete. If any other DTCs are indicated, go to the indicated DTCS TROUBLESHOOTING .