B12C7 The electric steering lock module saw a fault in the steering lock motor circuit
What does B12C7 mean on a Honda?
B12C7. The electric steering lock module saw a fault in the steering lock motor circuit. The lock may not release and the vehicle may not start. This Honda-enhanced code applies to Honda and Acura models that use this code.
Common causes of B12C7
- Faulty electric steering lock motor
- Electric steering lock motor harness is open or shorted
- Electric steering lock motor circuit poor electrical connection
- Low battery voltage affecting the electric steering lock
- Faulty electric steering lock control unit
How to fix B12C7
- Confirm the code with a scan tool and check the steering lock operation
- Inspect the electric steering lock connector for corrosion, moisture, and loose pins
- Test battery voltage and charging to rule out low voltage
- Test the steering lock circuit and component before replacing parts
- Replace the electric steering lock motor only if it fails testing, then clear codes and retest
Sources and review
- Last updated 2026-09-29.