C1011
Left Front Wheel Speed Sensor Signal Erratic Performance
C1011 is an OBD-II diagnostic trouble code meaning: Left Front Wheel Speed Sensor Signal Erratic Performance. Common causes: damage to the wheel speed sensor, sensor or magnetic ring dirty. Estimated repair cost: ~$556.
Symptoms
- ABS or ESP indicator is on
- Unstable ABS operation
- Problems with the stability control system
- Incorrect speedometer readings
Causes
- Damage to the wheel speed sensor
- Sensor or magnetic ring dirty
- Open or short circuit in wiring harness
- Poor contact in the sensor connector
- ABS control unit malfunction
How to Fix
- Check the condition of the left front wheel speed sensor
- Clean the sensor and magnetic ring from dirt
- Check the integrity of the wiring harness and connector
- Measure sensor resistance (must meet manufacturer's specifications)
- If necessary, replace the sensor or wiring harness
- Reset the error and check the operation of the ABS system
Related codes
FAQ
What does the C1011 code mean?
C1011 is an OBD-II diagnostic trouble code that indicates: Left Front Wheel Speed Sensor Signal Erratic Performance
What causes a C1011 error code?
The most common causes of C1011 include: Damage to the wheel speed sensor; Sensor or magnetic ring dirty; Open or short circuit in wiring harness; Poor contact in the sensor connector.
How do I fix a C1011 diagnostic trouble code?
To fix C1011: Check the condition of the left front wheel speed sensor. Clean the sensor and magnetic ring from dirt. Check the integrity of the wiring harness and connector. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1011?
Limited driving only, diagnose soon
How much does it cost to fix C1011?
The estimated repair cost for C1011 is ~$556. Actual cost depends on your vehicle, location, and labor rates.
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