Multi function unit on '95 RRC

[flyfisher11]

Can anyone give me a list of the accessories that the multi funtion unit on a 95 specific controls? I know LR used them differently. I have one that is causing a draw of about .4~.5 volts. I have a bunch of junk that doesn't work which I suspect is related to the mfu.

Thanks,

Mike

not much in RAVE if anything that I have found.

 

[MilSpec]

The list I came up with is:

Headlight switch, turn signals
Flasher/Hazard
Door/Tailgate light
Wipe/Wash
Heated front/rear window screen
Drivers seat buckle
Window Ecu

Sooo, a whole bunch of crap. I worked on one once before and it ended up being a ground wire that was forgotten while doing a heater core.

 

[flyfisher11]

The list I came up with is:

Headlight switch, turn signals
Flasher/Hazard
Door/Tailgate light
Wipe/Wash
Heated front/rear window screen
Drivers seat buckle
Window Ecu

Sooo, a whole bunch of crap. I worked on one once before and it ended up being a ground wire that was forgotten while doing a heater core.

Thanks! When I pull the fuse and watch the current draw disappear I still have headlights, and all windows except DS rear so I'd say for the most part your list is correct. There is so much crap not working that it is getting confusing to say the least. I'm not to concerned as this ain't no princess but is becoming another trail truck but it is new to me and I am trying to get to know it. I'm just trying to make sure that I have enough to keep it legal and running right.

 

[ptschram]

I have yet to see an MFU fail, everytime I thought it was the MFU, it has turned out to be something that was attached to it.

Rear windows, first thing to check is window ECU, but I'm sure you already knew that ! (there is one on the steps to the second floor of the shop with "Needs resoldered" in paint pen on the box-someday!)

 

[flyfisher11]

Malfunction Junction what's your function?

 

[skippy3k]

I hope your are somewhat wrong, PT. I am replacing my MFU this weekend to (hopefully) solve no courtesy lights, my rear defrost turning on when I open the door, intermittent rear wiper, and alarm going off on it's own, which I think is the courtesy light as well. We will see.

I hope it's not the same as it is with P38's. Everyone always said the BeCM would be bad, and I'd never seen one fail...well, except mine, but I repaired it. All the other times it was something attached to it, like you said. But a MFU is a LOT cheaper than a BeCM, so it's not a bad place to start.