B16AF
Left Stop Lamp Control Circuit
B16AF is an OBD-II diagnostic trouble code meaning: Left Stop Lamp Control Circuit. Common causes: burnt out brake light bulb, open or short circuit in wiring harness. Estimated repair cost: $6–111.
Symptoms
- Left brake light does not light up
- Dashboard warning (malfunction lamp)
- In some cases, other security systems are triggered
Causes
- Burnt out brake light bulb
- Open or short circuit in wiring harness
- Oxidation or damage to contacts
- Brake light relay malfunction
- Body Control Module (BCM) Problems
- Brake light switch malfunction
How to Fix
- Check and replace, if necessary, the left brake light bulb
- Inspect the wiring harness for damage
- Check the contacts in the lamp socket and connectors
- Check brake light relay
- Replace BCM if necessary
- Reset the error code and check the system
Related codes
FAQ
What does the B16AF code mean?
B16AF is an OBD-II diagnostic trouble code that indicates: Left Stop Lamp Control Circuit
What causes a B16AF error code?
The most common causes of B16AF include: Burnt out brake light bulb; Open or short circuit in wiring harness; Oxidation or damage to contacts; Brake light relay malfunction.
How do I fix a B16AF diagnostic trouble code?
To fix B16AF: Check and replace, if necessary, the left brake light bulb. Inspect the wiring harness for damage. Check the contacts in the lamp socket and connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B16AF?
Do not drive — repair immediately
How much does it cost to fix B16AF?
The estimated repair cost for B16AF is $6–111. Actual cost depends on your vehicle, location, and labor rates.
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