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Any newer Ford mechanics on here -wiring question?
bambihunter
Member Posts: 10,788 ✭✭✭✭
I know, I haven't been on here in a long time so shame on me to post a needy question, especially about a Ford. [:D] I have spent since 11am on this and now the last 3 hours trying to find this answer.
My wife's 2013 Lincoln MKX got visited by a rodent last night and it chewed into the wires of the middle ECM harnesses (EWF4 is the ECM number). I cut it back and soldered a piece of wire between the open ends on all of the wires with a match. However, After repairing 9 wires (18 junctions) in this fashion, I am left with 4 wires of two different colors and I am at a loss how to tell which pair of wires go together.
I have 2 brown wires and 2 Orange/Gray (could be Orange/tan) on each side. With the key off, nothing has any voltage. With the key in the accessory position, one brown wire is 12v coming UP towards the ECM and the other brown wire has some low voltage in the 4-7 volt area coming FROM the ECM. I am leery to connect anything and fry the ECM. If we try to start the vehicle with it connected as it sits right now, it will crank basically one revolution and stop. Following the wire down to the engine, it looks like it could control the injectors, coils, probably a sensor or two. It looks to be the main engine ECM connector thus likely why it isn't starting.
The irony to this is, this morning, I was going to use her vehicle to go to town to get a part for my older Chevy truck. Before this week is over I may be driving my '83 Hurst/Olds. [:D]
My wife's 2013 Lincoln MKX got visited by a rodent last night and it chewed into the wires of the middle ECM harnesses (EWF4 is the ECM number). I cut it back and soldered a piece of wire between the open ends on all of the wires with a match. However, After repairing 9 wires (18 junctions) in this fashion, I am left with 4 wires of two different colors and I am at a loss how to tell which pair of wires go together.
I have 2 brown wires and 2 Orange/Gray (could be Orange/tan) on each side. With the key off, nothing has any voltage. With the key in the accessory position, one brown wire is 12v coming UP towards the ECM and the other brown wire has some low voltage in the 4-7 volt area coming FROM the ECM. I am leery to connect anything and fry the ECM. If we try to start the vehicle with it connected as it sits right now, it will crank basically one revolution and stop. Following the wire down to the engine, it looks like it could control the injectors, coils, probably a sensor or two. It looks to be the main engine ECM connector thus likely why it isn't starting.
The irony to this is, this morning, I was going to use her vehicle to go to town to get a part for my older Chevy truck. Before this week is over I may be driving my '83 Hurst/Olds. [:D]
Fanatic collector of the 10mm auto.
Comments
Do not run it or such until you fix it up. A wiring diagram may be borrowed at the ford dealer.
The buggers have gotten into my truck probably 6 times over that many years and they keep chewing the same area but thankfully it is just the windshield washer wiring and pump hose and horn once.