Birty Dastards Jeep Club
Tech Forum => Workshop => Topic started by: sianevans on July 20, 2020, 04:52:58 AM
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Hello,
I am trying to fix a recently broken 1997 Jeep Wrangler imobiliser fob, which is preventing the car from starting. Would anyone know or could take a look / take a photo of the inside of there fob to determine the size and type of the resistor?
Ive attached an image for reference. Its the two button black fob. Thanks!!! A close up photo would really help!!
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Here's the board from mine. Click on the pic to enlarge it. The six (resistors I presume) on the left above the board are all marked 392.
The transistor right of the big brown thing is marked 5D-1. The small brown thing at the bottom left of the chip is marked A5. I don't see any markings on any of the other surface mount components.
The immobiliser and PCM are paired. I don't know if it's still possible but the immobiliser could be sent to the manufacturers and a touch key added. Your other option if the fob can't be repaired is to get a PCM from a US Jeep that didn't have security on it. 97-99 TJ PCMs should work but 98-99 had SKIM security as an option. I think they also have a leak detection system I think so might generate a trouble code and CEL. You'd have to make sure engine size and transmission matches too.
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Thank you, this was very helpful! The remote has been fixed. A capacitor had fallen loose and subsequently lost. Car rescued. Thank you also for the suggestion re: touch key, I will look into it. Much appreciated.