OBD code C1156 indicates an issue with the Steering Angle Sensor in the AntiLock Brake System (ABS).
Symptoms include ABS and Engine warning lights illuminated.
Causes may include a faulty sensor, wiring harness issues, poor electrical connections, or problems with the ABS Control Unit.
This is a serious issue affecting vehicle safety.
To fix, inspect and repair any damaged components, wiring, or connectors related to the Steering Angle Sensor.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the c1156 OBD Code
The vehicle displays an ABS warning light on the dashboard.
- Symptoms: AntiLock Brake System (ABS) Warning Light ON.
- Engine Light ON (or Service Engine Soon Warning Light).
- Possible loss of ABS functionality.
- Brake pedal may feel different during braking.
- Unusual noises from the ABS system.
Causes of the c1156 OBD Code
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Possible triggers for fault code C1156 include issues with the wheel speed sensor or ABS module.
- C1156 can be caused by a Faulty Steering Angle Sensor.
- An open or shorted Steering Angle Sensor harness.
- Poor electrical connection in the Steering Angle Sensor circuit.
- A Faulty ABS Actuator and Electric Unit (Control Unit).
- Or issues with the CAN communication line.
Fixing Error Code c1156 Step By Step
Replace the faulty wheel speed sensor to address fault code C1156.
- To fix OBDII code C1156, start by reviewing the possible causes mentioned above.
- Visually examine the corresponding wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no issues are found with the wiring and connectors, proceed to inspect the wheel speed sensor for proper operation and connection.
- Test the wheel speed sensor using a multimeter to ensure it is within specifications.
- Replace the wheel speed sensor if it is faulty.
- Clear the fault code using an OBDII scanner and test drive the vehicle to verify the repair.
Cost Of Fixing c1156 Fault Code
Diagnosing and repairing fault code C1156 may involve inspecting and replacing faulty wheel speed sensors.
The cost to diagnose and fix OBD code C1156 depends on the estimated 1. 0hour repair time.
Labor rates range from $75 to $150 per hour, so the general cost could be between $75 and $150. Factors like shop rates and complexity of the repair can influence the final cost.
Details of the c1156 OBD Code
Code C1156 indicates a fault with the rear wheel speed sensor circuit.
OBD code C1156 means Speed Wheel Sensor LF Coherency Fault.
This code is triggered by the Electronic Brake Control Module (EBCM) when it detects an inconsistency in the signals from the left front wheel speed sensor compared to the other wheel speed sensors.
This fault typically indicates a problem with the left front wheel speed sensor or its circuit, causing issues with the AntiLock Braking System (ABS) and Traction Control System (TCS) operation.
Mechanic’s Tech Notes
Code C1156 indicates a fault in the rear wheel speed sensor circuit on the left side.
OBDII code C1156 typically indicates a fault with the park brake actuator motor.
To diagnose, use a voltmeter to check power and ground to the actuator motor.
Scan tools can help verify communication over the CAN network.
Visually inspect wiring harnesses and connectors for damage, corrosion, or pin issues.
If no visible problems are found, the actuator motor itself may need replacement.
Reflashing the TCM could also be necessary.
Remember to clear the code after repairs are made to see if it returns, indicating a successful fix.
FAQ
OBD code C1156 indicates an issue with the Steering Angle Sensor in the AntiLock Brake System. Check sensor, wiring, and connectors for faults.
Common symptoms for OBD code C1156 include ABS warning light on, engine light on. Possible causes: faulty steering angle sensor, wiring issues. Fix: Inspect wiring and connectors for damage.
Diagnose and repair OBD code C1156 by checking the steering angle sensor, its harness, and ABS unit for faults. Inspect wiring and connectors for damage or corrosion.
Wrap Up
If your ABS warning light is illuminated and you retrieve OBDII code c1156, it may indicate a fault with the rear wheel speed sensor circuit on your vehicle.
This could be caused by a damaged wheel speed sensor, faulty wiring connections, or a corroded sensor connector.
To address OBDII code c1156, start by inspecting the wiring harness and connectors related to the rear wheel speed sensor.
Look for any signs of damage, corrosion, or loose connections.
Test the sensor itself for proper operation and replace if necessary to resolve the issue.
