Question about 1995 Pontiac Bonneville
We purchased a used Pointiac Bonneville with the "knowledge" that the key ignition module did not recognize the computer chip in the key. The car does not always start and we have to keep turning the ignition switch for 20 minutes until the car starts. We purchased a new module unit and installed it. We were told that we would need a relearn code for this. The car started several times (without the relearn code) and now we are back in the same position where the car will not start. My husband hooked up a tester/code reader to the car and it will not read the computer. When hooked up to a different vechicle it will read it..but it is not reading this bonneville. We called the service department at the dealer and they said that the module comes with 3 parts (Module?, PCM, Ignition).
Do you think that we should replace the PCM and ignition or does this problem sound like something else?
What is the re-learn code for this module part with all the wires?
Call a locksmith they have a reader and can tell if your key is the problem... it will tell them which keycode is for your vehicle and they can check and see if the key matches also i have a 95 ssei and the pcm was the problem with mine
Posted on Jan 27, 2009
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Posted on Jan 02, 2017
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Mar 19, 2015 | 1997 Pontiac Bonneville
You have an electronic immobilizer key recognition problem. Your key chip is not recognized by the transponder antenna fitted on the ignition switch barrel. Do you have this warning symbol lightning on the dashboard?
This warning lamp indicates that the engine is locked by the immobilizer system, and the engine start sequence must be repeat again.
From year 1995 in Audi-VW (VAG) cars is used engine immobilizer. The VAG group immobilizer system consists of an immobilizer ECU which controls the recognition of keys and the Engine Management ECU system. Immobilizer is activated when the ignition key is removed and, together with the engine control unit, largely prevents unauthorized starting of the engine. The system uses a transmitter and receiver unit in the ignition key (transponder). Whenever an attempt is made to start the engine, it transmits a new code to the car's electronics. The immobilizing is only cancelled and car motor electronic receives permission to start engine if the key sends a right authorization code.
Use another ignition key that you have, and start the engine.
You will need to programm all ignition keys using suitable diagnostic equipment (VAS, VAG-Com) connected to the data link connector of the car.
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