I am looking for help swaping a m42 into a 2002. Mostly on the wiring side of things. I just need to know where the ecu and ignition pulls power and grounds from. Does it get it all from the c101 connector?
I assume there is a constant power going to the main relay, then a switched power from the key going to the ecu which then turns on the main relay and power everything.
Where do these connections get made?
Also what ground connections need to be made?
Any help would be great. Trying to learn about all this before I dive in.
I have a m42 with the entire harness and ecu. I also have a 318is as a DD so I can look at that too.
If anyone has a wiring diagram for the entire car that would be great.
Jake
I assume there is a constant power going to the main relay, then a switched power from the key going to the ecu which then turns on the main relay and power everything.
Where do these connections get made?
Also what ground connections need to be made?
Any help would be great. Trying to learn about all this before I dive in.
I have a m42 with the entire harness and ecu. I also have a 318is as a DD so I can look at that too.
If anyone has a wiring diagram for the entire car that would be great.
Jake
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