BCM, body control module. It controls lights, wipers, alarm, etc.
PCM, powertrain control module. It is the engine computer.
The alarm functions are handled by both the PCM, under the hood, and the BCM, back side of under dash fuse panel.
No bus means that there is an open circut between the bcm & the pcm ae open or loose wires
the pcm is located under the hood on the left hand side just left of the ecm
disconect the battery for more than a minute
If you can not find used, then you buy new or scrap the car.
It is a combination of the PCM(engine computer) and the BCM (body computer)
BCM is in the trunk. all the way to the right. You have to remove the panel to get to it The PCM is under the dash on the right side. You have to remove the glove box to access the screw that holds it in place.
The factor alarm does not work off of one fuse. The pcm and bcm are both part of the alarm. If you pulled those fuses the engine and all interior items would be dead.
Go to Autozone.com and click on there component locator
BCM- Body Control Module
A 1997 Wrangler doesn't have a BCM. (body control module) It does have a PCM (powertrain control module) which is behind the battery.
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