I have a 1990 Dodge Grand Caravan that I’m having electrical issues with. It was suggested that I check out connections to/replace the BCM, but after looking on the web and in my Haynes manual, I still can’t figure out where it even is. Anyone know? I know the ECU is next to the battery, and there is some kind of computer bolted on the firewall behind the alternator, but I’m under the impression the BCM is in the dash somewhere and it doesn’t look like the pictures I’m seeing. What’s that thing on the firewall?
Also, as long as the OE matches, it’s possible to get this part from a different kind of car, right? Web search results yield information about the Le Baron and some trucks, but no mention of the Caravan anywhere.