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9
Interior light issue

junkyard module installed. Drivers door will now LOCK, but will not UNLOCK. Interior lights only come on when lock/unlock button is held. This tells me that this new module also has the same bad transistor or diode causing this issue. I think I’m seeing a commonality between all the unsolved...
- 98K3500Dually
- Post #14
- Apr 23, 2022
- Forum: Audio + Electronics
9
Interior light issue

Looking closer at the actuator page, I see it now. I’m making the connection between both of the “J” triangles and seeing that circuit 694 (Tan) would have to be grounded for the doors to lock, and would have to provide 12v for the doors to unlock. I also understand how the previous owner...
- 98K3500Dually
- Post #11
- Apr 20, 2022
- Forum: Audio + Electronics
9
Interior light issue

The way the GM schematic appears, is that circuit should be “open” unless it is providing power to the unlock circuit at the drivers door. When the module is plugged in and I press the unlock button, it drew 22amps on my meter before the fuse blew. When the module is unplugged, it only draws...
- 98K3500Dually
- Post #10
- Apr 20, 2022
- Forum: Audio + Electronics
9
Interior light issue

I found a burnt trace in the RKE/RFA module and it is for the drivers door unlock command. I am going to the junkyard in hopes to find one on Friday and see if it resolves the issue. This pin is shorted to ground after repairing the trace, which leads me to believe there is a blown diode within...
- 98K3500Dually
- Post #8
- Apr 20, 2022
- Forum: Audio + Electronics
9
Interior light issue

Hey, I know this is an old thread, but did you resolve this issue? I am having almost the same issue with a customers 98 K3500. Interior light comes on only when the lock/unlock button is held. Someone previously has overlayed the tan circuit from the passenger side to drivers side door. When I...
- 98K3500Dually
- Post #4
- Apr 17, 2022
- Forum: Audio + Electronics