Figuring it was the most-used toggle that was the problem I got another door control unit. No luck. Examined the wiring and connectors looking for shorts, no evidence visible. Pulled the window motor and had it tested, works fine. What's next? Haven't checked the fuse box because the other 3 windows work fine.
Whats your email address i would send a wiring diagram
Sometimes on older models, the wiring between the door and the pillars is broken,
Pull the rubber cover over the wiring between the door and the pillar and inspect for broken wires. Even if you had power to the motor, when you close the door, there’s a possibility that the broken wire moves and losses connectivity
Let me know, Pierre ( Montreal )
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Him ,ine start ok and gradually grinds to a halt whne its half open. I assumed that this would be a tired motor or siezed up linkages.
I haven't pulled it apart as I expect I'll end up killing it altogether!
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