B3445
Stop Lamp Circuit
B3445 is an OBD-II diagnostic trouble code meaning: Stop Lamp Circuit. Common causes: burnt out brake light bulbs, brake light relay malfunction. Estimated repair cost: $6–56.
Symptoms
- Brake lights don't work
- The malfunction indicator on the dashboard flashes or lights up
- Error B3445 in diagnostic scanner memory
Causes
- Burnt out brake light bulbs
- Brake light relay malfunction
- Wiring harness damage
- Short circuit in the circuit
- Brake light switch malfunction
How to Fix
- Check brake light bulbs and replace if necessary
- Check fuses and relays associated with the brake light circuit
- Inspect the wiring harness for damage
- Check brake light switch
- If necessary, replace faulty components
Related codes
Error B3445 by Vehicle Brand
FAQ
What does the B3445 code mean?
B3445 is an OBD-II diagnostic trouble code that indicates: Stop Lamp Circuit
What causes a B3445 error code?
The most common causes of B3445 include: Burnt out brake light bulbs; Brake light relay malfunction; Wiring harness damage; Short circuit in the circuit.
How do I fix a B3445 diagnostic trouble code?
To fix B3445: Check brake light bulbs and replace if necessary. Check fuses and relays associated with the brake light circuit. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3445?
Limited driving only, diagnose soon
How much does it cost to fix B3445?
The estimated repair cost for B3445 is $6–56. Actual cost depends on your vehicle, location, and labor rates.
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