B2527
Left Rear Stop Lamp Circuit Failure
B2527 is an OBD-II diagnostic trouble code meaning: Left Rear Stop Lamp Circuit Failure. Common causes: burnt out brake light bulb, open or short circuit in wiring harness. Estimated repair cost: $6–56.
Symptoms
- Left rear brake light does not work
- Dashboard warning
- The brake light may flicker or become unstable
Causes
- Burnt out brake light bulb
- Open or short circuit in wiring harness
- Poor contact in the lamp socket
- Corrosion in connectors
- Faulty relay
- Body Module (BCM) Problems
How to Fix
- Check the condition of the brake light lamp
- Inspect the lamp socket for corrosion
- Check the voltage at the cartridge contacts when pressing the brake
- Ring the circuit from the fuse box to the lamp
- If necessary, replace the lamp, clean the contacts or repair the wiring
Related codes
FAQ
What does the B2527 code mean?
B2527 is an OBD-II diagnostic trouble code that indicates: Left Rear Stop Lamp Circuit Failure
What causes a B2527 error code?
The most common causes of B2527 include: Burnt out brake light bulb; Open or short circuit in wiring harness; Poor contact in the lamp socket; Corrosion in connectors.
How do I fix a B2527 diagnostic trouble code?
To fix B2527: Check the condition of the brake light lamp. Inspect the lamp socket for corrosion. Check the voltage at the cartridge contacts when pressing the brake. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B2527?
Do not drive — repair immediately
How much does it cost to fix B2527?
The estimated repair cost for B2527 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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