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.
Circuit Description
Theft deterrent system (Passlock) uses 3 components to determine if vehicle has passed theft, lock cylinder, ignition switch, electronic Instrument Panel Cluster (IPC) and Powertrain Control Module (PCM). After system has Passed Theft, PCM will continue normal operation. If Passlock system does not allow Passed Theft, PCM disables fuel injectors and DTC 1629 is set.
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.