S2000 Under The Hood S2000 Technical and Mechanical discussions.

Immobilizer question

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Old 04-17-2009, 06:44 PM
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Ok so I've been having troubles getting my car to start today and it may have something to do with the immobilizer...How do i know if the immobilizer is being engaged? is there a light sequence i should know about?
Old 04-17-2009, 06:54 PM
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If the green key light is still flashing while you are trying to start the car there is an issue with the immobilizer. Usually an un-programmed key.
Old 04-17-2009, 06:58 PM
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oh i see ... well my key has been working fine for 2 years and all of a sudden wont start... maybe the chip got screwed up?
Old 04-17-2009, 07:43 PM
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Not likely.
Old 04-17-2009, 07:45 PM
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More likely would be the transceiver. The chip in the key is almost inert.
Old 04-17-2009, 11:02 PM
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so how will i know for sure?
Old 04-18-2009, 04:16 AM
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Is the green key light flashing?
Old 04-18-2009, 07:41 AM
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the green key light only flashes when i take the key out ...which is normal i assume...while i crank its off and it also turns off after 2 seconds when i first insert the key and turn to ACCII
Old 04-18-2009, 09:35 AM
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Sounds like that's not the problem. I'm assuming your compression test came out ok? If your compression test came out ok, then check spark again. You said you have spark but it wasn't very powerful? It needs to be strong and blueish. Sounds like your getting fuel as well. If all of that checks out, try swapping your ecu out with a friends. Also maybe you have a corroded ground somewhere. Good luck.
Old 04-18-2009, 09:52 AM
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Originally Posted by Mugen112,Apr 18 2009, 10:35 AM
Sounds like that's not the problem. I'm assuming your compression test came out ok? If your compression test came out ok, then check spark again. You said you have spark but it wasn't very powerful? It needs to be strong and blueish. Sounds like your getting fuel as well. If all of that checks out, try swapping your ecu out with a friends. Also maybe you have a corroded ground somewhere. Good luck.
you cant simply swap the ECU... the Immobilzer code is in the ECU... and your ignition wont work with their key...


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