can anyone elaborate on the operation of the gen. module and relay module.....

[ryan roopnarine]

i did a sort of haphazard repair on them just now, resoldering the large relay traces and connector traces/ it seems that only the wipers have changed in status (no more door open-wiper off business). im hoping that its a single relay somewhere that's f'dup. i haven't checked it after a battery reset (plugged in the general and relay modules with the battery hooked up) so maybe things are better than i can see right now. im wondering what would cause simultaneous failure of the domelight, windows, wipers, and door locks (or some places to start from). NO, i sincerely doubt its a fuse link, as the radio, wipers, obc, et cetera still work. Thanks.

[Javier]

?

[ryan roopnarine]

1992 525i, 07/1991 production

[shogun]

Alarm (factory fit)
Central locking
Washer pump
Windscreen wipers
Radio
Interior lights
Radio
Rear de-mister

A bit difficicult to find, check close to the battery under the sound isolation material (pic is from a E32)

[ryan roopnarine]

Alarm (factory fit)
Central locking
Washer pump
Windscreen wipers
Radio
Interior lights
Radio
Rear de-mister

A bit difficicult to find, check close to the battery under the sound isolation material (pic is from a E32)

like i said, ive had a fusible link failure before, i sincerely doubt this is the same. my washer pump still works, my windscreen wipers still work when they want to, my radio works, my interior light works when manually switched on, and my rear defogger does as well.

[ryan roopnarine]

the night when the first failure happened, i saw that one of the fuses underseat (a 30ampere one) had blown. as i was trying to give myself some satisfaction as to having "fixed" something, i pulled it out and tossed it across the parking lot. this morning, i tried plugging the battery back in to see if the module had reset. i also plugged a fuse back in there to see what would happen (couldn't find my packet of spares when i "replenished" the blown one). well, the GM failure was still there, but the fuse had blown by the time i went back to the backseat to check things out again. i wonder what the main current draw is on the GM.......im thinking that maybe this has nothing to do with a failure in the GM and more to do with a defective subsystem hooked up to it. wonder if hooking a 40a homebrew fuse for diagnostic purposes will hurt it too much

[Bill R.]

,

the night when the first failure happened, i saw that one of the fuses underseat (a 30ampere one) had blown. as i was trying to give myself some satisfaction as to having "fixed" something, i pulled it out and tossed it across the parking lot. this morning, i tried plugging the battery back in to see if the module had reset. i also plugged a fuse back in there to see what would happen (couldn't find my packet of spares when i "replenished" the blown one). well, the GM failure was still there, but the fuse had blown by the time i went back to the backseat to check things out again. i wonder what the main current draw is on the GM.......im thinking that maybe this has nothing to do with a failure in the GM and more to do with a defective subsystem hooked up to it. wonder if hooking a 40a homebrew fuse for diagnostic purposes will hurt it too much

[ryan roopnarine]

,

that's one of my problems, bill. nothing i have (bentley, otherwise) seems to say which fuses are what number. bentley has a list of circuits and amperage requirements, but im not seeing numbers for the underseat fuses. i also looked at the fuse holders, none of them seem to have numbers on them. it is the 2nd fuse from the left in the 30 ampere cluster.

[Javier]

?

[Bill R.]

and here is the link to the fuses...

Here is the link to the fuses