OBD code C1011 indicates a fault in the Left Front Wheel Speed Sensor circuit of the AntiLock Brake System (ABS).
Symptoms include ABS Warning Light and Engine Light being ON.
Causes may include tire air pressure mismatch, faulty sensor, or wiring issues.
This issue should be addressed promptly to ensure safe braking operation.
A possible fix involves inspecting and repairing the sensor, wiring, and connectors.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the c1011 OBD Code
The vehicle may exhibit issues with the ABS system, such as erratic braking behavior.
- 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 c1011 OBD Code
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Possible triggers for fault code C1011 include wheel speed sensor issues and ABS module malfunctions.
- C1011 can be caused by tire air pressure mismatch.
- A faulty Left Front Wheel Speed Sensor.
- Left Front Wheel Speed Sensor harness is open or shorted.
- Left Front Wheel Speed Sensor circuit poor electrical connection.
- A faulty AntiLock Brake System (ABS) Module.
Fixing Error Code c1011 Step By Step
Inspect the wheel speed sensor and its wiring for faults or damage.
- To fix OBDII code C1011, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the ABS system.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the wheel speed sensors for proper operation and signal output.
- Inspect the ABS control module for any signs of damage or corrosion.
- Reset the ABS module using a professional scan tool if necessary.
- Replace the ABS control module if all other components check out fine and the issue persists.
Cost Of Fixing c1011 Fault Code
Diagnosing and repairing fault code C1011 may involve inspecting wheel speed sensor circuits and related components.
The cost to diagnose and fix OBD code C1011 typically ranges from $75 to $150, with an estimated repair time of 1. 0 hour.
Costs depend on labor rates, shop fees, and the complexity of the issue.
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Details of the c1011 OBD Code
C1011 code indicates an issue with the ABS hydraulic pump motor circuit.
OBD code C1011 means ABS Power Relay Coil Circuit Failure.
This code is triggered by the AntiLock Brake System (ABS) module when it detects a circuit failure in the power relay coil.
The ABS module monitors the power relay coil circuit to ensure proper operation of the ABS system.
When a failure is detected in this circuit, the C1011 trouble code is set, indicating a problem with the ABS power relay coil circuit.
Mechanic’s Tech Notes
Code C1011 indicates an issue with the ABS hydraulic pump motor circuit.
OBDII code C1011 typically indicates a problem with the Transmission Control Module (TCM).
To diagnose, check TCM power and ground using a multimeter.
Use a scan tool to confirm TCM communication over the Controller Area Network (CAN) network.
Inspect wiring harnesses and connectors for damage, and check connector pins for issues like corrosion or bending.
If no visible issues are found, consider reprogramming the TCM.
This process may require specialized equipment and software.
FAQ
OBD code C1011 indicates an issue with the Left Front Wheel Speed Sensor circuit. Check for tire pressure mismatch, sensor faults, or wiring issues.
Common symptoms for OBD code C1011 include ABS warning light on, engine light on, caused by tire pressure mismatch, faulty wheel speed sensor, or ABS module. Fix: Inspect wiring and connectors.
Diagnose OBD code C1011 by checking for tire pressure mismatch, faulty left front wheel speed sensor, or ABS module issues. Inspect wiring and connectors for damage.
Wrap Up
If your ABS warning light is on and you see OBDII code c1011, it may indicate a faulty ABS hydraulic pump motor circuit.
This could be caused by damaged wiring, poor connections, or a malfunctioning ABS hydraulic pump motor.
To address OBDII code c1011, check the wiring harness for any signs of damage or corrosion.
Inspect the connectors for a secure fit and proper contact.
If no issues are found, consider testing or replacing the ABS hydraulic pump motor as needed.
