Our JeeP Grand Cherokee has just died in the electrical department. Press the remote and nothing. Batteries in remote well over 3v each. All electrical seem to be working but not the central locking and the immobiliser. From what I have researched I suspect the box called a body control module is somehow involved. In my mind I am thinking check the fuse but cannot identify one in the system. For some years now we have had to occasionally disconnect th battery for 10 secs when one of the door modules went to sleep and the drivers door window and mirror wouldn't work. That bit hasn't stopped working so it's anew fault. Anyone got any ideas? I would love to scrap all the modiules and gizmos and hard wire everything like my Prefect as the car is getting on for 20 yrs old and who is going to steal it?
Just found another clue that may be useful. Further to the drivers door sleep syndrome as mentioned above, this time the driver's door is still working but the passenger door has gone and nothing will revive it so far. I have been reading the unhelpful manual and somewhere there is a module that has the receiver for the remote key fob and I think it is one of the door modules. Also, been looking on the web for others problems and it emerges that wires breaking where they enter the door after years of bending back and forth.