Offroad Trailblazers and Envoys

Electrical bug - Driver Door - Ideas to find

Breaker 1-9, anybody got a copy? Any discussion or mods relating to electrons and wires go here.

by bljis123 » Wed Nov 30, 2016 1:43 pm

Envoy XL SLT with full driver control module, i.e. memory, heated seats... Viper 560X alarm with remote start.

ISSUE:
Driver door control module dead, door lock dead(works manually tho). Just no power to door anymore.

ISSUE HISTORY:
Door controls use to work. Then it was intermittent, yet I could usually do the driver window still. Over time that quit working too. I noticed going from drive to park the door locks would unlock like 5 times in a row. I noticed during this time the driver door lock would no longer lock automatically.

I bought a used control module on ebay used. That would give me driver window only for a while til that went dead as well.

Tearing apart while PCM is in NC getting tuned. Here are some pics, the previous owner had an entertainment console as I see holes left in head panel.

Under Dash, I am guessing this FM modulator controls this wireless thing in back.
under dash.jpg


Wireless thing in back:
wireless.jpg


Also, I have this speaker and wireless thingy on driver pillar. It used to give a tone like power on but no connection. Is it a cell phone thing? I just realized I have not heard the speaker humm in a while. hhhmmmm
driver pillar.jpg



Any ideas are great!! Posting this just made me think about that speaker on pillar....

Thanks,
Brett
Moog 14 springs with Bilstien 5125 shocks sitting on BFG KO2's
2003 GMC Envoy XL SLT 4x4
User avatar
bljis123
Off-Roader
 
Posts: 111
Joined: Mon Oct 17, 2016 10:55 am
Location: Jacksonville, FL
Name: Brett
Vehicle Year: 2003
Vehicle: GMC Envoy XL
DriveTrain: 4WD

by bljis123 » Thu Dec 01, 2016 2:00 am

What the heck is this thing?

Under passenger rear seat.

IMG_4869.JPG
Moog 14 springs with Bilstien 5125 shocks sitting on BFG KO2's
2003 GMC Envoy XL SLT 4x4
User avatar
bljis123
Off-Roader
 
Posts: 111
Joined: Mon Oct 17, 2016 10:55 am
Location: Jacksonville, FL
Name: Brett
Vehicle Year: 2003
Vehicle: GMC Envoy XL
DriveTrain: 4WD

by mason10198 » Thu Dec 01, 2016 11:09 am

bljis123 wrote:What the heck is this thing?

Under passenger rear seat.

IMG_4869.JPG

Should be your Onstar box from GM, has all the GPS and other sensors in it.

Sent from my XT1650 using Tapatalk
User avatar
mason10198
Moderator
 
Posts: 415
Joined: Thu Sep 17, 2015 11:49 pm
Location: AR, Bryant
Name: Mason
Vehicle Year: 2005
Vehicle: Chevrolet TrailBlazer
DriveTrain: 4WD w/ Aftermarket Locker
Rank: Offroad Rated

by bljis123 » Thu Dec 01, 2016 4:19 pm

I am cleaning up wiring that no longer has use and inspecting all wiring and so far nothing looks bad or could have been shorted. Got my PCM back so I am about to test soon... Hopefully it's mysteriously gone...
Moog 14 springs with Bilstien 5125 shocks sitting on BFG KO2's
2003 GMC Envoy XL SLT 4x4
User avatar
bljis123
Off-Roader
 
Posts: 111
Joined: Mon Oct 17, 2016 10:55 am
Location: Jacksonville, FL
Name: Brett
Vehicle Year: 2003
Vehicle: GMC Envoy XL
DriveTrain: 4WD

by bljis123 » Thu Dec 01, 2016 9:55 pm

Finally, I found it!!! Funny thing I tore the whole insides out just to find under kick panel trim on driver side. :facepalm:

Tore all out though unnecessary:
no seats.jpg


Corrossion on wire and metal area where it was grounding for awhile:
wire short.jpg


On another note the tune from PCM of NC is awesome and noticeably better!!!! :woot:
Moog 14 springs with Bilstien 5125 shocks sitting on BFG KO2's
2003 GMC Envoy XL SLT 4x4
User avatar
bljis123
Off-Roader
 
Posts: 111
Joined: Mon Oct 17, 2016 10:55 am
Location: Jacksonville, FL
Name: Brett
Vehicle Year: 2003
Vehicle: GMC Envoy XL
DriveTrain: 4WD


Return to Electrical / Radios