Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
DTC B1224/24: Passenger Door Lock Switch Circuit Malfunction: DTC Detecting Condition
DTC B1224/24 is used to notify technician how switch works. If DTC B1224/24 is not set when door lock switch on front passenger door is operated, power door lock switch or door key lock switch contacts are faulty. If DTC B1224/24 is set when door lock switch on front passenger door is not operated, power door lock switch or door key lock switch is stuck.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.