I have a friend with an 01 Bonny SE. The car has 68K on it and is garaged (cream puff). The car has an electrical issue that I would consider minor but after searching multiple forums the "data-buss" scheme has me puzzled. Symptoms: No power windows, Locks, interior lights, keyless entry,cig lighter- I wound think simply replacing a fuse in the "fuse block" would cure it.--NOT-- From what Ive read there is a maxi-fuse box&relay center under the hood, a traditional fuse block in the dash, plus a secondary battery-micro relay block under the rear seat. My freind has spent hours checking every fuse in the car with a volt meter and they are OK. I am trying to diagnose this problem for him without looking at the vehicle-he thinks it is a multiple thousand dollar fix- and I think a simple ground or module replacement will solve the issue. By The way-does anyone know why such a complicated wiring system is justified? I have a 1999 Caddillac Escalade that soaks up 200 Amps on a hot day (160000mi, 4 heated seats, dual ac'*, trailer brakes, ent system, etc) easy using the original Alternator and traditional wiring. Anyway-given the fact that all the bonneville issues are isolated to power accessories- can anyone narrow it down?

At least some of those things (if not all.) is handled by the RIM (rear integrations module). I'll have to do more checing in order to provide any more information.

Archon.. any chance this might be another bad connector like Silverbullet experienced?

Yeah, Bill....I should have been a bit more specifiic in my post. I'm thinking more of a power or grounding problem - not the module itself at least to start. Trying to find a common point for all the problems. The interior lights and cig lighter are controlled by the RIM, I think the locks and windows by the door modules, and the keyless entry has another.

Shawn, as a start, check connections in the rear fuse box. Make certain even where the fuses connections are good and tight. Check the main power going to it, and grounding. Then, do the same in the underhood fuse box.

I've been looking at Ground Distribution Schematics just as a starting point, haven't found any common denominators between any of the components that are not operating. I'll start looking into the power/control interfaces next. Just as a quick check though to see if the door modules are powered up, place key in ignition, radio off, turn ignition to "on". Now operate the driver door power window switch to lower the driver door window. Do you hear a faint click from inside the driver door? Try to operate the passenger door window from the driver door, do you hear a faint click from inside the passenger door? Now try to operate the passenger door window locally from the passenger door, do you hear a faint click?

Shawn, Have you made any progress with this problem. These automotive electrical problems can be a real witch hunt at times. The more info & descriptions we have, the better we can assist.