U11C9
Lost Left Front Wheel Speed Message
U11C9 is an OBD-II diagnostic trouble code meaning: Lost Left Front Wheel Speed Message. Common causes: wheel speed sensor malfunction, broken or damaged wiring to the sensor. Estimated repair cost: $17–56.
Symptoms
- The ABS/ESP indicator on the dashboard is on
- Disabling the stabilization system
- Incorrect operation of the anti-lock braking system
- Possible errors in the operation of cruise control
- Errors in other systems that depend on speed data
Causes
- Wheel speed sensor malfunction
- Broken or damaged wiring to the sensor
- Poor contact in the sensor connector
- Damage to the gear wheel (benchmark) on the hub
- Problems with the ABS control module
How to Fix
- Check the integrity of the wheel speed sensor
- Inspect wiring and connectors for damage
- Check the condition of the gear on the hub
- Test the sensor resistance and compare with the norm
- If necessary, replace the wheel speed sensor
Related codes
FAQ
What does the U11C9 code mean?
U11C9 is an OBD-II diagnostic trouble code that indicates: Lost Left Front Wheel Speed Message
What causes a U11C9 error code?
The most common causes of U11C9 include: Wheel speed sensor malfunction; Broken or damaged wiring to the sensor; Poor contact in the sensor connector; Damage to the gear wheel (benchmark) on the hub.
How do I fix a U11C9 diagnostic trouble code?
To fix U11C9: Check the integrity of the wheel speed sensor. Inspect wiring and connectors for damage. Check the condition of the gear on the hub. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U11C9?
Limited driving only, diagnose soon
How much does it cost to fix U11C9?
The estimated repair cost for U11C9 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat