alarm working and immobilizer and key not working

2006 JEEP GRAND CHEROKEE

250,000 MILES • 5.7L • V8 • 4WD • AUTOMATIC

YALLA_911A

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I have only one key for the car. the car didn't start so the workshop told me the immobilizer problem and change the immobilizer car work, but the flasher headlight and alarm working and the key did not work for unlocking or lock remote. I put the old immobilizer but car didn't start and central says key is not valid try another key.
how can i fix this problem?

Mar 23, 2021 at 10:28 AM

Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.

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You can go to the dealer with your VIN and they we program the key for you. here are the instructions on how to get the old key and ignition switch out in the diagrams below. Check out the diagrams (below). Please let us know what happens.

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Mar 25, 2021 at 10:12 AM