C0116
Stop Light Switch Circuit Malfunction
C0116 is an OBD-II diagnostic trouble code meaning: Stop Light Switch Circuit Malfunction. Common causes: faulty brake light switch, open or short circuit in wiring harness. Estimated repair cost: $22–56.
Symptoms
- Brake lights don't work
- Cruise control does not activate
- Check Engine light comes on
- ABS may not work correctly
Causes
- Faulty brake light switch
- Open or short circuit in wiring harness
- Poor contact in connectors
- Problems with the engine control unit (ECU)
How to Fix
- Check the operation of the brake lights
- Inspect the wiring harness for damage
- Check the brake light switch with a multimeter
- Replace the switch if necessary
- Clean connector contacts
- Check the circuit for open or short circuit
Related codes
Error C0116 by Vehicle Brand
FAQ
What does the C0116 code mean?
C0116 is an OBD-II diagnostic trouble code that indicates: Stop Light Switch Circuit Malfunction
What causes a C0116 error code?
The most common causes of C0116 include: Faulty brake light switch; Open or short circuit in wiring harness; Poor contact in connectors; Problems with the engine control unit (ECU).
How do I fix a C0116 diagnostic trouble code?
To fix C0116: Check the operation of the brake lights. Inspect the wiring harness for damage. Check the brake light switch with a multimeter. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0116?
Do not drive — repair immediately
How much does it cost to fix C0116?
The estimated repair cost for C0116 is $22–56. Actual cost depends on your vehicle, location, and labor rates.
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