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.
Description & Operation
Vehicle is equipped with the Personalized Automotive Security System (PASS-Key(R)), Fuel Enable Data Stream (FEDS) system and Universal Theft Deterrent (UTD) anti-theft system. PASS-Key(R) is designed to prevent vehicle theft by disabling engine unless an ignition key with a specific electrical resistance is used in ignition key lock cylinder. PASS-Key(R) system operates using sensing contacts which are located in ignition key lock cylinder. These contact a key resistor pellet which is located on the ignition key. When lock is rotated, battery voltage is applied through appropriate fuse to Central Control Module (CCM). Pellet resistance is then compared with programmed value in module.
System components include ignition key, ignition key lock cylinder, Central Control Module (CCM), theft deterrent relay and Powertrain Control Module (PCM).
The Fuel Enable Data Stream (FEDS) system operates in conjunction with PASS-Key(R) and UTD systems. FEDS system uses a password exchange system between PCM and CCM after the correct ignition key is inserted to enable fuel delivery to the engine.
The UTD option operates separately from PASS-Key(R) system. UTD sounds horn, disables fuel to injectors and disables starter in the event of forced entry through doors or rear hatch.
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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.