Pontiac Montana Brake Lights- Power Sliding Door Does Not Work

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2002 Pontiac Montana. Replaced coil pack, spark plugs and wires.
Question = Why does my tail, turn, brake lights not work. The fuses and bulbs are all good. When I hit the brakes, the shifter and turn indicator lights go dim. Please help me, I have to leave town(sick family 3,000 miles away) my wife needs to be safe. Thanks! God Bless.

Answer:
Sounds like you have a short or other wiring problem. A common area of odd electrical problems for rear lights is the actual circuit boards in the rear lights assemblies that the bulbs plug into. Sometimes they short out internally and cause back feeding into other lighting circuits. The taillight circuit boards would need to be replaced if that is the problem.

Also, look into the plug for both of those circuits, and look for corrosion. This assuming that all bulbs ARE good. The incorrect bulb number or bent terminals on the bottom of the bulbs can also cause this sort of back feeding. Turn signal switch is also a possibility, but a wiring schematic and some testing would be need to determine that, but those rear circuit boards are usually the cause.

2003 Pontiac Montana van.
Question:
I have a 03 Pontiac Montana van with dual sliders doors on the left side. Van caught fire due to a short i think. Any way would like to make this a manual door so it will open again. Do your mechanics have any tips? This would be greatly appreciated thanks.

Answer:
You CAN make this a manual door without going into the interior trim panel and removing the entire power motor assembly. We have converted these doors to manual by cutting the cable that works the door, on both ends. A cable comes from the rear of the door, and one cable from the front and they both attach to the door roller. Use some bolt cutters and then just pull them out.

You need to cut it as close to the end of the cable- not close to the door roller. Then you can remove the remaining cable from the roller. The door will still be a little stiff opening and closing, but not as much as if the cables were still on. You would also need to turn the power door switch to off in the overhead console switch. Or get to the module and disconnect the wiring harness to disable it.

Without doing that someone can accidently push the button and the motor will try to operate and cause all kinds of bad noises.