Question about 2009 GMC Envoy

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2009 GMC Envoy - power door locks, power windows, fuel gauge not working, dome light isn't working

I went over a gravel parking lost and everything went out of whack...the stabilizer track came on, tire level warning came on....those two eventually went away but the driver door, window, mirror, fuel gauge, dome light will not work, the battery light is on, the parking light is on and the air bag light is on and the car still starts...

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  • GMC Master
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Do you know anything about automotive electronic's ? computer controlled systems ? There is electronic control modules in side the doors of your vehicle that control the operation of the windows an lock's , plus the instrument cluster is a module too . Your vehicle has about 10 different control modules and thet are all hooked on a serial data communication network ,to share info. The fuel tank sending unit in the gas tank is wired to the PCM - engine computer , The PCM sends fuel level info to the gauge in the instrument cluster on this serial data network . Your best bet ,take an have the vehicle checked out by a qualified repair shop .
The power door lock system consists of the following components:
• Driver Door Module (DDM)
• Passenger Door Module (PDM)
• Liftgate Module (LGM)
• Door lock relay
• Door unlock relay
• Body Control Module (BCM)
• Reversible door lock actuators in each of the doors
• LR/RR LOCKS 10A fuse (relay supply voltage)
• Door lock switches in driver and passenger doors (switches are integral components to the DDM and PDM)

Power Door Lock Operation
The power door lock switches are integral components of the DDM and PDM. The switches are two position normally open rocker switches. When placed in either the lock or unlock positions, the switches provide a direct input to the DDM or PDM. The DDM or PDM monitors these inputs and sends a Class 2 message indicating a change in the switch's respective position. Modules which activate the power door lock motors receive the Class 2 message and activate the motor in the appropriate direction to lock or unlock the vehicle's doors and liftgate. The modules which activate the power lock motors are:
• DDM (driver door lock actuator).
• PDM (passenger front door lock actuator).
• BCM (both rear door lock actuators).
• LGM (liftgate door lock actuator).
The DDM, PDM and LGM are directly connected to the respective door lock actuator through the door lock motor lock and unlock circuits. Once a door lock or unlock request has been received, the module will supply battery voltage to one side of the actuator and ground the other causing the doors to lock or unlock.

The modules probably have DTC'S - diagnostic trouble codes stored , these would point a auto tech in a positive diagnostic direction .

Posted on Oct 30, 2017

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Posted on Jan 02, 2017

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  • 2 Answers

SOURCE: HAVE A 03 GMC SIERRA

I had the same problem in my wife's 2003 Yukon Denali. The power seats and passengers side window wouldn't work. Turned out to be a blown Buss Type fuse in the Underhood Fuse Block. It is the one marked MBEC 1 50amp. Hard to tell if the are blown so look very carefully. Should look like a hoop with two shiny solderlooking bubbles on either side. On my blown fuse, it caught my attention because it looked like the solder was missing and I had to look very closely to see the bottom of the "hoop" was open. They are very hard to remove and must be pulled straight up.
This type of fuse looks like a red square with a clear plastic top showing the fuse link under the plastic. On my vehicle it is on the top row second one from the left.

Posted on Dec 21, 2008

  • 548 Answers

SOURCE: On my 2003 gmc passenger power door nothing works. can

it sounds as if the wiring harness to the door may have come disconnected or broken you have to open the door panel and check the connections manually

Posted on Aug 26, 2009

  • 2 Answers

SOURCE: 2006 GMC 3500 loss of power to drivers door

the main switch is wore out, Had the same problem the dealer install new switch 100 dollars for the part 125 for labor good luck

Posted on Sep 19, 2009

kdgrayson
  • 195 Answers

SOURCE: 2000 GMC Sierra Power mirrors do not work

sounds like a switch as common error oboth sides unlikely

Posted on Dec 31, 2009

Testimonial: "Thanks, I'll give it a try"

  • 2 Answers

SOURCE: 2002 gmc envoy - the pasanger door power windows,

Probably the door control module, which controls all those functions, as well as the power mirror. Some have reported getting it to work by disconnecting the battery for 30 seconds, so give that a try. If the module is bad it will have to be either re-programmed or replaced at a dealership, as it has to be coded to the vehicle's security code. I recently had mine replaced, cost was over $700 :-(


Posted on Feb 19, 2010

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1 Answer

I lost the fuse diagram for my dads 95 dodge grand caravan. Can anyone help me out with one?


#1: Panel Illumination
#2: Guages,Right High beam headlight and the high beam indicator
#3: Rear Wiper, Left headlight High Beam
#4: RH park, backup lights switch and relay,Speed porpotional steering module,power door lock switch illumination and daytime running lights(Canada)
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#10: Not used
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#13,14,15,16 not used
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1 Answer

Rear power windows don't work on 2002 envoy


may the switch from the front went out

if you can roll the back windows down the back doors then i would check the window motors

Sep 08, 2012 | 2002 GMC Envoy

1 Answer

I have a 2006 GMC Envoy the gas needle was located just above the red mark to indicate it is empty but the fuel light was not on. I filled my tank, when I started the engine the needle went below the red...


Either you have a bad fuel level sending unit or the stepper motor that drives the fuel gauge is bad. A high end scan tool will be required to determine if it is the sending unit.

Aug 13, 2011 | 2006 GMC Envoy

1 Answer

Power window, power locks ,and power mirrors don't work on my gmc envoy 2006 but the other controlers work in the vehical.


I assume you are talking about the controller on the driver's door. The Driver's Door Module is likely defective. For troubleshooting purposes, you can swap in the passenger side module to verify.

Aug 05, 2011 | 2006 GMC Envoy

1 Answer

2006 gmc envoy drivers door has no power to it , no dome light when you open door all other doors are ok


{: ) Try checking the DDM fuse 10 amps at the rear fuseblock. If you'll be able to access the connectors under the driver door switch, check for 12v power by probing on all the orange wires. Check also the black wires for good ground connections. If the windows can be operated on the driver's door switches, then the door lock actuator coud be faulty. But if most or all of the buttons on the driver door switches doesn't seem to function at all, despite 12v power and ground on the respective terminals, then it can be a malfunctioning driver door switch. A new driver door switch will also require programming.
If ever this is the case and you need to be sure, you can try swapping the driver door switch from another vehicle you know of with a similar configuration as your vehicle.

Jul 10, 2011 | 2006 GMC Envoy

2 Answers

2002 envoy want crank no power windows no radio no gauge lights no turn signals no fuel pump battery is good.can not shift out of park.


look at main fuse under hood if it pops it will shut the hole car down check the battey or hook a battery charger on it 2 to 4 amps then see what u get

Sep 08, 2010 | 2002 GMC Envoy

1 Answer

2003 Envoy electrical


Try disconnecting the battery for 10 -15 minutes. Make sure all functions are turned off first, such as HVAC (all switches CCW or off), radio off.

May 25, 2009 | 2005 GMC Envoy

1 Answer

2007 envoy fuel gauge not working


Suspect faulty fuel sender. Fuel sender is attached to fuel pump in tank.

May 23, 2009 | 2007 GMC Envoy Denali

1 Answer

My interior light no longer come on when the door is Open


I am not real sure about this but my 2001 Blazer has this option. Right by the headlight switch is a button called the dome over-ride and if this is activated the interior domes will not work. Try that and if this is not the case let me know and I will look farther into it.

Lefty64

Apr 08, 2009 | 2002 GMC Envoy

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