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E4OD wiring diagram

36760 Views 10 Replies 6 Participants Last post by  danjreed, 
Deib
How do I trouble shoot the TC circuit without a scan tool?

I know there is the purple wire with yellow stripe, it should lock up if I ground that.

So where does it get it's power? Is there more than one wire that controls or supplies power to the TC convertor.

I am looking for ways to test the TC circuit inside the tranny so I can figure out if my problem is internal or external.
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STurbo90
The power going into the transmission is the same power source as the pcm, comes from the pcm relay.

The same power wire feeds the pressure control, shift 1, TCC, shift 2, coast clutch, solenoids.
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