Steering Angle Sensor Circuit

STEERING ANGLE SENSOR CIRCUIT





When Monitored and Set Condition
^ When Monitored: With the ignition on. The Controller Antilock Brake (CAB) monitors the status of the Steering Angle Sensor.
^ Set Condition: The DTC will set if a malfunction is detected between the CAB and the Steering Angle Sensor.





For a complete Electronic Stability Program (ESP) Circuit Diagram refer to Diagrams; Electrical.

Diagnostic Test
1. MEASURE STEERING ANGLE SENSOR FUSED B(+) CIRCUIT VOLTAGE

Note: Inspect Fuse 14 located in the Underhood Accessory Fuse Block. If the fuse is open, repair the cause of the open fuse before continuing.

Turn the ignition off.
Disconnect the Steering Angle Sensor harness connector.

Note: Check connectors - Clean/repair as necessary.

Turn the ignition on.





Measure the voltage of the Fused B(+) circuit at the Steering Angle Sensor harness connector.
Is the voltage above 10 volts?
Yes >> Go to 2
No >> Repair the Steering Angle Sensor Fused B(+) circuit. Perform ABS VERIFICATION TEST. ABS Verification Test

2. MEASURE THE STEERING ANGLE SENSOR SIGNAL CIRCUIT RESISTANCE
Turn the ignition off.
Disconnect the CAB harness connector.

Note: Check connectors - Clean/repair as necessary.





Measure the resistance of the Steering Angle Sensor Signal circuit from the CAB harness connector to the Steering Angle Sensor harness connector.
Is the resistance below 5.0 ohms?
Yes >> Go to 3
No >> Repair the Steering Angle Sensor Signal circuit for an open. Perform ABS VERIFICATION TEST.

3. MEASURE THE STEERING ANGLE SENSOR SIGNAL CIRCUIT RESISTANCE
With the ignition off.





Measure the resistance between ground and the Steering Angle Sensor Signal circuit.
Is the resistance below 10K ohms?
Yes >> Repair the Steering Angle Sensor Signal circuit for a short to ground. Perform ABS VERIFICATION TEST.
No >> Go to 4

4. MEASURE THE VOLTAGE OF THE STEERING ANGLE SENSOR SIGNAL CIRCUIT
Turn the ignition on.





Measure the voltage of the Steering Angle Sensor Signal circuit at the Steering Angle Sensor harness connector.
Is voltage present?
Yes >> Repair the Steering Angle Sensor Signal circuit for a short to voltage. Perform ABS VERIFICATION TEST.
No >> Go to 5

5. MEASURE THE STEERING ANGLE SENSOR GROUND CIRCUIT RESISTANCE
Turn the ignition off.





Measure the resistance between ground and the Sensor Ground circuit.
Is the resistance below 5.0 ohms?
Yes >> Replace the Steering Angle Sensor. ABS VERIFICATION TEST.
No >> Repair the Sensor Ground circuit for an open. Perform ABS VERIFICATION TEST.