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Searched but can't find pinout for 2003 APP to TAC pigtail (both ends). Want to make sure I don't have a wire in the wrong place. Can anyone direct me to the pinouts?
Thanks but that's the wrong one for me. I think that is an early 'Vette with 3 wires per circuit whereas mine (truck?) has only 6 wires, two per circuit. What really scares me is that you said it was the same on both ends and I noticed mine is NOT the same on both ends. This is why I would like the APP pinout to see if this is my problem.
okay, got it. The one I posted is the pigtail that connects the tac module to the APP. I'm thinking you are after the later model that goes right to the app? Truck pedal or corvette pedal?
This is what the corvette pedal app pinout is. Swap D & F for the truck:
Still a differeent conector! Mine has two rows of 5 pins each. It is now pinned like this:
A Not used
B Not used
C Not used
D White/black - 5 volt ref
E Dark blue - APP 1 signal
F Not used
G Purple - 5 volt ref
H Light blue - APP 2 signal
J Tan - low ref
K Brown - low ref
It appears the plug has not been messed with. I used the colors that I have for the TAC plug pinout. On that plug A, E, H and K are not used. Looking under every rock to find out why it goes into limp mode while under power and throws code U0107. Changed out EVERYTHING except this pigtail.
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APP pigtail pinout 
