05-06 GTO LS2 E40 engine harness "White" connector pinout please

[GeoffP]

Does anyone have the pinout of the "white" connector that goes into the cabin of the car on the main engine harness? It's a 3 column connector and doesn't have many wires connected to it. I have the pinouts for C1, C2, and C3 to the ECM. This connector is the only connector I can't find pinouts for. Any help will be greatly appreciated.

[GeoffP]

Surely someone has an 05 or 06 GTO service manual who can copy this page? Please?

[daytonayellaz]

Hey Geoff..... I can get this info for you. Give me a little bit and I should have it for you tonight.

[GeoffP]

Thanks! Any chance you've got any good used Corvette accessory drive parts lying around?

[BlackPearl]

Goffp,

Sounds like the Tach plug as that's what white was on my harness and mine was coming from C3. Sounds like daytona can confirm if yours is the same or not.

[daytonayellaz]

Here you go Geoff...

The Tan... is CAN-
The Tan/Black stripe... is CAN+
The Pink... is 02 sensor power ignition
Light Green and Brown... are continuity for back up lights.

Manual Trans...
Yellow... goes to C1 number 42 (RLO...reverse lock out)

Automatic Trans...
Light blue/Red stripe.... is Brake
Orange/Black stripe.... is Battery +
Yellow.. does nothing (was light for shift indicator)

If you end up needing help with this harness, send it to us and we will take care of it for you..:cheers:

[GeoffP]

Very good - that helps me pinpoint where it is on the wiring diagram. My diagram had all the other plugs labeled exactly except for that one. THANK YOU! I thought maybe the plug was the CAN data lines...nothing I'll use unless I decide to try to make the cruise control work by buying a PIM. I don't see me doing that unless I find one for cheap.

[daytonayellaz]

Happy to help Jeff :cheers:

[daytonayellaz]

Thanks! Any chance you've got any good used Corvette accessory drive parts lying around?

Sorry.... I didnt see this earlier. Im sorry but I cant help on this one. With all the drop out LS engines I sell those are like gold around here..LOL.

[GeoffP]

No worries - I nickel and dimed eBay for the parts. I picked up everything but the idler pulley.