C1143 Renault OBD-II Trouble Code

C1143 Renault – Steering Angle Sensor Circuit

Fault code C1143 Renault Steering Angle Sensor circuit.This sensor is located at the back of steering wheel.The steering angle sensor detect direction of the steering wheel ,angular velocity and rotation of steering wheel and transmit data to ABS (Anti-lock Braking System) actuator and electric control unit via CAN communication.

Possible Causes Of C1143 Steering Angle Sensor Circuit

1.Faulty or defective steering angle sensor.

2.Steering angle sensor harness or connector is open or shorted.

3.ABS actuator and electric control unit.

4.Short or defective fuse.

5.Poor ignition power supply system.

6.CAN communication line error.

C1143 Renault Fault Code Symptoms

1.ABS (Anti-Brake Lock System) warning light comes ON.

2.Malfunction light or Engine check light comes ON.

How To Fix C1143 Renault

Check all possible causes given above. Check steering angle sensor power supply, check voltage between steering angle sensor harness connector and ground. Check steering angle sensor power supply circuit. Check steering angle sensor ground circuit. Check steering angle sensor pin terminal for damage or loose connection with harness connector. Inspect CAN communication line and visually inspect wiring harness ,connector and components for broken or bent connector pins.

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