Electrical gremlin in my dually

BTR69 · 01-16-2021, 08:17 PM

Good evening. I have a 1998 Chevy 3500HD quad cab. Been having issues for a while with the power door locks randomly locking or unlocking on their own. Sometimes a dozen or more times in a minute or so timeframe. Might not do it for hours, then might start and continue for hours. I've replaced the driver side switch and still happens. Checked the wiring in the doors and it appears fine. Unfortunately the fuse panel access doesn't have any labeling for what fuse is what, so I haven't messed around in there yet I haven't spent much time yet troubleshooting, will be doing that tomorrow I hope. Anyone have advice on what to look for besides a shorted wire or faulty switch? Thanks.

Jeff Stout · 01-16-2021, 10:16 PM

When programming remotes for locks there is a procedure that makes unit lock and unlock in order to program more remotes. I believe there is a control box for remotes and it is malfunctioning. Dont know location of box other then in under dash. Had a Ford do the same thing

Mark Ruset · 01-16-2021, 11:41 PM

i believe that the passenger door lock module is the controller for the window and door lock operation, If memory serves me correctly this issues has been around for some time. It will most likely need the passenger door lock module reprogramed and updated.

01-16-2021, 08:17 PM	#1
BTR69 Junior Member Join Date: May 2014 Location: Wilmington NC Posts: 78 Likes: 127 Liked 30 Times in 14 Posts	Electrical gremlin in my dually Good evening. I have a 1998 Chevy 3500HD quad cab. Been having issues for a while with the power door locks randomly locking or unlocking on their own. Sometimes a dozen or more times in a minute or so timeframe. Might not do it for hours, then might start and continue for hours. I've replaced the driver side switch and still happens. Checked the wiring in the doors and it appears fine. Unfortunately the fuse panel access doesn't have any labeling for what fuse is what, so I haven't messed around in there yet I haven't spent much time yet troubleshooting, will be doing that tomorrow I hope. Anyone have advice on what to look for besides a shorted wire or faulty switch? Thanks. __________________ William Kilduff 1970 Barracuda (still under construction, indefinitely) 1968 Camaro SS/C

01-16-2021, 10:16 PM	#2
Jeff Stout VIP Member Join Date: Dec 2001 Location: phoenix Posts: 1,407 Likes: 53 Liked 654 Times in 254 Posts	Re: Electrical gremlin in my dually When programming remotes for locks there is a procedure that makes unit lock and unlock in order to program more remotes. I believe there is a control box for remotes and it is malfunctioning. Dont know location of box other then in under dash. Had a Ford do the same thing

01-16-2021, 11:41 PM	#3
Mark Ruset Member Join Date: May 2006 Location: Southwest Florida Posts: 250 Likes: 23 Liked 34 Times in 24 Posts	Re: Electrical gremlin in my dually i believe that the passenger door lock module is the controller for the window and door lock operation, If memory serves me correctly this issues has been around for some time. It will most likely need the passenger door lock module reprogramed and updated. __________________ Mark Ruset 2048 STK