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I can't find the ground wires in my Envoy - 2003 GMC Envoy

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2003 gmc envoy instrument cluster panel wiring diagram

Click on the link, hope it works?
Yes, it is a partial diagram. Check voltage and ground, see the fuses, not only check the fuses, check the fuse circuit for voltage. Use a test light. Some fuse circuits are hot all the time, some go hot with the key on. Also, check the ground, black wire with white tracer in diagram, should be chassis ground, check the way you would any chassis ground.
Any applicable trouble codes? As far as your gages, the pcm sends serial data to instrument cluster telling ipc what to do with gages. I can't rule out instrument cluster itself, at the moment.

Feb 14, 2017 | 2003 GMC Envoy

2 Answers

2004 gmc envoy, 4.2L engine, crank sensor circuit dead at fuse 17 in fuse block. One side reads as grounded, vehicle starts, runs, will not rev over 1500 rpm

1 side of the fuse is ground. Ck emissions, clogged exhaust, throttle positioning sensor, fuel PSI, vacuum leaks. Scan the PC for codes & go from there

Feb 12, 2017 | 2004 GMC Envoy

1 Answer

A deer hit the side of my 2005 gmc envoy,ard and my husband replace headlight, but left signal isnt working

Does your husban know how to do electrical testing ? Find a wiring diagram , voltage drop test the circuit to find what's missing power or ground . The hit could have damaged wiring or ground . You can find a wiring diagram at Also watch youtube video on Mastering Voltage Drop Testing with Pete Meier and Jerry Truglia .

Jan 21, 2017 | 2005 GMC Envoy

1 Answer

The rear defroster and wiper is not working on my 2007 gmc Envoy. Is there a way to test the lif gate module and how do I get to it?

May not be the module, or fuse. ALWAYS check the ground on this stuff first thing. If need be, take a piece of wire and hod the bare ends on the ground connection and other end on a clear spot on the bumper and have someone push the button to turn on the wiper. A good spot would be where the wiper comes thru the door to hold the wire on and other end on bumper to test ground fault.

Sep 25, 2014 | 2007 GMC Envoy Denali

1 Answer

Where is the ground wire located on a 2004 gmc envoy

Vehicles have many ground wires

Need a factory service manual or go to a repair
shop & look in their data base

Aug 12, 2014 | Cars & Trucks

1 Answer

2005 GMC Envoy trailer lights

Check the white ground wire on the plug on the vehicle.

Aug 23, 2012 | 2004 GMC Envoy

1 Answer

2003 Envoy wiper display problem

check wires if the is ground connection ,then check for wire miss connection. But then rain moisture can give effect on the radio and wiper if the is a grounded wires.

Jul 22, 2009 | 2003 GMC Envoy

1 Answer

2002 GMC Envoy - the wind sheild wipers won't shut off.

it may maybe a ground problem with a brown ground wire in the harnes

Apr 10, 2009 | 2002 GMC Envoy

2 Answers

Wiring diagram or fuse box diagram-2007 GMC Envoy Denali

Hi there;

Here is the wiring diagram for the trailer wiring for your truck.
Hope this helps

Mar 07, 2009 | 2007 GMC Envoy Denali

1 Answer

Veh wont start

by looking at the wiring diagram for your truck. the pcm1 fuse only feeds the pcm so most likely it is a grounded wire between the fuse block and pcm. follow the wire harness closely between the two and see if its grounded somewhere. also try disconnecting the pcm and see if the fuse still blows. that would isolate the problem to the wiring. it is highly unlikely that the pcm would cause the problem.

Nov 27, 2008 | 2004 GMC Envoy

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