C1121
Front Left Output ABS Solenoid
C1121 is an OBD-II diagnostic trouble code meaning: Front Left Output ABS Solenoid. Common causes: front left wheel abs solenoid malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- The ABS light on the dashboard is on
- Reduced braking performance
- Disabling the ABS system
- Activation of the ESP system may be impaired
Causes
- Front left wheel ABS solenoid malfunction
- Open or short circuit in wiring harness
- Problems with the ABS module
- Corroded contacts or poor connection
How to Fix
- Check the resistance of the front left wheel ABS solenoid
- Inspect the wiring harness for damage
- Check connections and contacts for corrosion
- Replace solenoid or wiring harness if necessary
- Reset the error and check the operation of the ABS system
Related codes
FAQ
What does the C1121 code mean?
C1121 is an OBD-II diagnostic trouble code that indicates: Front Left Output ABS Solenoid
What causes a C1121 error code?
The most common causes of C1121 include: Front left wheel ABS solenoid malfunction; Open or short circuit in wiring harness; Problems with the ABS module; Corroded contacts or poor connection.
How do I fix a C1121 diagnostic trouble code?
To fix C1121: Check the resistance of the front left wheel ABS solenoid. Inspect the wiring harness for damage. Check connections and contacts for corrosion. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C1121?
Limited driving only, diagnose soon
How much does it cost to fix C1121?
The estimated repair cost for C1121 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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