Bypass MFU

[darkstar]

Apparently one of the many functions of the Multi-Function Unit is to allow the car to start. when this thing is unplugged and the key is turned, the fuel pump comes on, but the starter doesn't budge when the key is turned...

I have not yet had a chance to crawl under the car yet to manually apply voltage to the solenoid, but I kind of have my doubts.

It seems a shame to have to keep the big fuse panel and MFU just to be able to start the car. there has to be a way around it...

Anyone have ideas for me before I set off on a wild goose chase?

edit: incidentally, my ETM does not make any mention of the MFU at all. It talks about the spider, which my vehicle doesn't have.

[darkstar]

OK. figured it out. all the MFU does is supply the ground to the starter relay. jumpered the starter relay ground terminal to ground, unplugged the MFU, she starts!

[mightymg1]

SAWEET! GET RID OF THAT MFU(CKER):eek:

[Buckon37s]

I would just dump all the Lucass and get a simple panel from 12Vguy. Simple to wire, sexy, less work in the long run. I felt a very strong sense of relief when the very last lucas wire in the entire truck was gone.