Question about 2001 GMC Sierra 2500HD

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Need wire colors and location for the 6 wire plug on a PNP switch on a 2001 GMC with the 4l80e

The harness was pulled away from the plug. There are 7 pins but only 6 are used. My problem is no one can tell me the wire to plug schematic.

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  • holmey73 Jan 25, 2013

    I don't think you people understand. Out hunting I snagged a dead tree and pulled the wires away from the plug that should be attached to the connector that goes into the PNP switch. Everyone keeps saying I'm wrong but I have the PNP switch in my hand. The top connector has 6 wiresand the lower one has 4.I have the 4 wire plug figured out but the 6 wire makes no sense. There are actually 7 slot in the connector labeled A ,B,C,D,E,F,G. Slot A is not used but what are the wire colors and whichslot does that wire go?

  • robert Jan 26, 2013

    i got sha /been there i went to salvage took pics then bought the whole30$

  • robert Jan 26, 2013

    LET ME know ill call my buddy owns salvage .ill send pic.

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  • Contributor
  • 32 Answers

Park/neutral position/on the transmission at the lever make sure brake on shift is neutral/its black plastic with wires comming out looks like a switch/you will see just make sure u r in neutral /and align tabs.

Posted on Jan 25, 2013

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badealer888
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SOURCE: can a glow plug wiring harness from a 1982 gmc witha 6.2 diesel be used on a 1998 gmc sierra with a 6.2 diesel

As long as there is not damaged areas, and all connections are the same. Should work.

Posted on Jun 23, 2009

  • 34 Answers

SOURCE: 7 wire harness going to blower motor resistor

There is an updated resistor/connector package. Very expensive from GM, try your local NAPA or other parts supplier for a replacement

Posted on Jul 09, 2009

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