Electrical info/ questions.

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• R56 :: Hatch Talk (2007+)

Electrical info/ questions.

#1
mustang_gt_350 , Today 07:15 AM
Howdy all. I recently picked up a 2012 Cooper s. It was a flood total loss and I'm trying to fix it. It's in awesome condition minus the water damage issues. No dents on the entire body.

Does anyone know where I can find wiring diagrams and pin outs for the modules?


currently the only things that work with the car on are the folding mirrors and the map reading lights and I do believe the dome light when the door is opened. I would like to start the drying process but I cant get the windows or hatch to open. And the remote will not unlock the doors or when it's pressed into the "ignition" I get zero noises,lights, or activity from the dash. I am pretty much assuming that the body control module (or as I believe it's called here a frm3? Is dead but I can't tell for sure if I can't get the key on to accessory. Between the flood and the battery being completely dead at around 1 volt I'm betting the body module is junk.

so far my first step is to check the FOB and replace the battery. I know its a" non replaceable" battery but I have nothing to loose. Then work my way around via a schematic to narrow down the issues. The reason of me thinking the FOB is dead is it looks like it was in the car during the flood.

I currently have the battery on a charger and will try it with a known good battery in place of the battery that came with it to make sure it's not a battery issue.

 

You must like a challenge.

I would take apart each connector & douse with electrical contact cleaner such as Detoxit, & blow out terminals with compressed air nozzle.

I have heard you can pack wet electronics in rice for a whil to dry them, but it is probably too late for that.

Also remove & clean all grounds.

Good luck, let us know how it turns our

 

I will give it a try I have electronic contact cleaner around the garage somewhere. I will try to update it as I get time to work on it.

Do you know the order of the modules? Example like what the module activation order is. As in key reader (sas?) then that activates the ecm if the code is correct and then activates the frm3? Just trying to find out the order I need to follow from the key all the way through the modules. To see what is being activated and where the hang up is along the way.

I have a problem with challenge accepted type of situations. The car looked super straight. I figured if I couldn't get it running with a moderate amount of time/effort I would either part it out or wait for a electrical donor car or use this one for a body donor car.