VSA System

Control System DTCs

VSA DTC Troubleshooting: 27-12, 27-13

DTC 27-12 : Steering Angle Sensor Stuck
DTC 27-13 : Steering Angle Sensor Output Signal Malfunction

NOTE:
* This DTC may set if the vehicle is driven on a lift (wheels are turning) and the steering wheel is turned significantly. This is normal, ignore it.
* Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information Reading and Clearing Diagnostic Trouble Codes.

1. Steering angle sensor performance check 1:

Steering angle sensor performance check 1
-1. Slowly drive the vehicle straight without operating the steering wheel for 10 ft (3 m) or more, then park the vehicle on a level surface, and put the front wheels in the straight ahead position.

-2. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.

With the steering wheel in the straight ahead position, is the STEERING ANGLE within 0±5 °?
-YES- Go to step 3.
-NO- Check the installation of the steering angle sensor Steering Angle Sensor Removal and Installation. If installation is OK, go to step 2.

2. VSA sensor neutral position memorization:

VSA sensor neutral position memorization
-1. Clear the DTC with the HDS.

-2. Do the VSA sensor neutral position memorization Programming and Relearning.

-3. Turn the ignition switch to LOCK (0).

-4. Test-drive the vehicle at 9 mph (15 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.

-5. Check for DTCs with the HDS.

Is DTC 27-12 or 27-13 indicated?
-YES- Go to step 3.
-NO- Troubleshooting is complete.

3. Steering angle sensor performance check 2:

Steering angle sensor performance check 2
-1. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.

When the steering wheel is slowly turned, does the value change?
-YES- Go to step 4.
-NO- Replace the steering angle sensor Steering Angle Sensor Removal and Installation.

4. Steering angle sensor performance check 3:

Steering angle sensor performance check 3
-1. Set the front wheels to the straight ahead position.

-2. Turn the steering wheel one turn to the right. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.

Is there about +324 degrees to +396 degrees?
-YES- Go to step 5.
-NO- Replace the steering angle sensor Steering Angle Sensor Removal and Installation.

5. Steering angle sensor performance check 4:

Steering angle sensor performance check 4
-1. Set the front wheels to the straight ahead position.

-2. Turn the steering wheel one turn to the left. Check the STEERING ANGLE in the VSA DATA LIST with the HDS.

Is there about -324 degrees to -396 degrees?
-YES- Go to step 6.
-NO- Replace the steering angle sensor Steering Angle Sensor Removal and Installation.

6. Steering angle sensor check:

Steering angle sensor check
-1. Turn the ignition switch to ON (II).

-2. Clear the DTC with the HDS.

-3. Turn the ignition switch to LOCK (0).

-4. Test-drive the vehicle at 9 mph (15 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.

-5. Check for DTCs with the HDS.

Is DTC 27-12 or 27-13 indicated?
-YES- Replace the steering angle sensor Steering Angle Sensor Removal and Installation.
-NO- Intermittent failure, the system is OK at this time. Refer to intermittent failures troubleshooting.