C1231 Drive Test: Steering Angle Sensor

C1231 Drive Test: Steering Angle Sensor - When monitored code C1231 drive test: steering angle sensor, during the drive test. Set condition, if the Antilock Brake System (ABS) Module detects implausible steering angle sensor data.

Possible causes code C1231 Drive Test: Steering Angle Sensor

• Steering angle sensor installation.
• Steering angle sensor.
• Antilock Brake System (ABS) Module

How to fix diagnose code C1231 Drive Test: Steering Angle Sensor?

Step 1. Check for a DTC C1231 Drive test steering angle sensor

This DTC must be active for the results of this test to be valid.

If any of the following DTCs are present they must be repaird before continuing DTC C1219 Steering angle sensor erratic performance, DTC C123F steering angle sensor comparative performance or DTC C1240 Steering angle sensor angle overtravel performance.

Turn the ignition on, with the scan tool read and record DTCs. With the scan tool read and record environmental data to help identify the conditions in which the DTC was set. Perform ECU initialization with drive test. Start the engine, with the scan tool, read and record DTCs.

Does the scan tool display C1231 Drive test steering angle sensor?

YES, go to step 2.

NO, perform the ABS intermittent.

Step 2. Verify that the steering angle sensor is active on the BUS

With the scan tool, select steering angle sensor module. Verify that the steering angle sensor is active on the BUS.

Is the steering angle sensor active on the BUS?

YES, go to step 3.

NO, for no response related diagnostic (see non DTC diagnostic in the site).

Step 3. Check steering angle

Turn steering wheel so wheel point in a straight ahead position. With the scan tool check steering angle.

Is the steering angle reading within ±15 degrees?

YES, go to step 4.

NO, go to step 5.

Step 4. Check steering angle change

Turn steering wheel so wheels point in a straight ahead position. With the scan tool check steering angle, slowly rotate steering wheel while looking for a smooth change. The degrees will decrease to the right and increase when rotating steering to the left.

Did the steering angle change accordingly?

YES, replace the Antilock Brake System (ABS) Module. Perform the ABS verification test.

NO, replace the steering angle sensor. Peform the ABS verification test.

Step 5. Check steering angle sensor installation

Test complete for code C1231 Drive Test: Steering Angle Sensor

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