Oldsmobile Questions? Ask a Mechanic for Answers ASAP
hi there, I am Cam. Can you confirm that these are all functions in the same assembly or that they all failed at the same time?
Lets check the DRV MDL fuse in the fuse block in the rear under the seat. This powers the drivers door module and controls those items.
Ok, are you able to get to the drivers door module in the drivers door and check the wiring for power and ground? There are 2 orange wires that should have power, 1 black and one black white that need ground. These are the power and ground to the drivers door module.
In left front door behind the trim panel in the upper right corner of the door
Large orange wire has no power. Correct? That large where is fed by the power seat circuit breaker in the rear fuse block. IF that has power, then we need to look for a broken wire in the door boot to the door from the body. Without power to that wire, the module won’t operate.
The smaller one does not, that gets its power from the DRV MDL fuse, same issue, broken wires.
As a test, if you jump power from one orange to the other, do those items start working again?
And do the items operate then with it plugged in now?
Ok do you see evidence of water intrusion into that switch, wiring or the door module? With the wiring in tact I am thinking the door switch or the door module is faulty.
Crack is not good. It suggests damage and may carry through to the circuit board.
That I don't have access to the GM parts catalogue, but according to online sources, I am seeing used for about 50$.
Can I get your Vin?
Ok so you have no power going to the switch, that should get its power from the orange going through the module. Since they share the same circuit number, you can splice power from the smaller orange wire going into the module in Pin A8 to the orange going to the switch assembly and see if function is restored.
Lets back up. Do you have power on both orange wires and ground on the thick black and the black white wire?
ground to the black wires.
The black wires need ground not power. If there is no ground then the module will not work. Can you see if those have a ground, even consider splicing them a new ground.
Ok so ground is solid. Lets work through this document, it’s the diagnosis for this.
The scan tool may slow us down.
What did you find for each step?