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.
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HOMESERVICE MANUALSJAGUAR2002XJ8 VANDEN PLASREPAIR AND DIAGNOSISGENERAL INFORMATIONCOMPUTER RELEARN PROCEDURES - IMPORTMAZDAIMMOBILIZER UNIT & POWERTRAIN CONTROL MODULE
2002 Jaguar XJ8 Vanden Plas
Immobilizer Unit & Powertrain Control Module
2002 Jaguar XJ8 Vanden PlasSECTION Immobilizer Unit & Powertrain Control Module
NOTE:
Keys may be new or valid. If errors occur during reprogramming in steps 1 or 2, start over from step 1. If errors occur during step 3, go to REPROGRAM ERROR RECOVERY .
- Cut new transponder equipped key(s), if necessary. After replacing immobilizer unit and PCM. Using first key, turn ignition switch to ON position. SECURITY light should illuminate and then go out. Turn first key to LOCK position and remove key. SECURITY light should flash repeatedly in single pulses.
- Using second key, turn ignition switch to ON position. SECURITY light should illuminate and then go out. Turn second key to LOCK position and remove key. SECURITY light should flash in double pulses repeatedly.
- Using third key, turn ignition switch to ON position. SECURITY light should illuminate and then go out. Turn third key to LOCK position and remove key. SECURITY light should flash repeatedly in triple pulses.
- Repeat step 3 with each new key, up to 8 keys total. Waiting 30 seconds will cause program to quit automatically. After reprogramming is complete, clear DTCs with NGS tester.
RENDER: 1.0x
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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.