YES -
Go to step 9.
NO -
Replace the original yaw rate-lateral/longitudinal acceleration sensor See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Yaw Rate Sensor/Service and Repair.?
9. Update the VSA modulator-control unit if it does not have the latest software See: Brakes and Traction Control/Antilock Brakes / Traction
Control Systems/Traction Control Module/Testing and Inspection. If the unit already has the latest software, substitute a known-good VSA
modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control Module/Service and
Repair.
10. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
11. Test-drive the vehicle. Drive the vehicle at 19 mph(30 km/h) or more, and go a distance of 985 ft (300 m) or more.
12. Check for DTCs with the HDS.
Is DTC 25, 26, or 28 indicated?
YES -
Check for loose terminals in the VSA modulator-control unit 46P connector. Check for a loose connection at G303. If the VSA modulator-control
unit was updated, substitute a known-good VSA modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Traction Control Module/Service and Repair, then retest. If the VSA modulator-control unit was substituted, go to step 1.
NO -
If the VSA modulator-control unit was updated, troubleshooting is complete. If the VSA modulator-control unit was substituted, replace the
original VSA modulator-control unit See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Traction Control
Module/Service and Repair. If any other DTCs are indicated, go to the indicated DTCs troubleshooting.?
27
VSA DTC Troubleshooting: 27
DTC 27:
Steering Angle Sensor Malfunction
NOTE: Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information.
1. Turn the ignition switch to ON (II).
2. Check for DTCs with the HDS.
Is DTC 86 indicated with DTC 27 at the same time?
YES -
Do the DTC 86 troubleshooting See: 86.?
NO -
Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Substitute a known-good steering angle sensor See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Steering Angle
Sensor/Service and Repair.
5. Turn the ignition switch to ON (II).
6. Do the VSA sensor neutral position memorization with the HDS See: Brakes and Traction Control/Antilock Brakes / Traction Control
Systems/Testing and Inspection/Programming and Relearning.
7. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.
8. Check the DTC with the HDS.
