C0023
Stop Lamp Control
C0023 is an OBD-II diagnostic trouble code meaning: Stop Lamp Control. Common causes: open or short circuit in wiring harness, brake pedal sensor malfunction. Estimated repair cost: $33–111.
Symptoms
- Brake lights don't work
- The malfunction indicator on the dashboard is on
- Problems with cruise control (if any)
Causes
- Open or short circuit in wiring harness
- Brake pedal sensor malfunction
- Damaged brake light relay
- Blown fuse
- Problems with the control unit
How to Fix
- Check fuses and replace if necessary
- Inspect the wiring harness for damage
- Check the brake pedal sensor
- Diagnose brake light relay
- Scan the control unit for errors
Related codes
Error C0023 by Vehicle Brand
FAQ
What does the C0023 code mean?
C0023 is an OBD-II diagnostic trouble code that indicates: Stop Lamp Control
What causes a C0023 error code?
The most common causes of C0023 include: Open or short circuit in wiring harness; Brake pedal sensor malfunction; Damaged brake light relay; Blown fuse.
How do I fix a C0023 diagnostic trouble code?
To fix C0023: Check fuses and replace if necessary. Inspect the wiring harness for damage. Check the brake pedal sensor. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with C0023?
Do not drive — repair immediately
How much does it cost to fix C0023?
The estimated repair cost for C0023 is $33–111. Actual cost depends on your vehicle, location, and labor rates.
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