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#1
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86 190e Power Window Circuit
Unexpectedly acquired an 86 190e about a week ago. Trying to troubleshoot the power window circuit which controls the driver front and pass rear windows.
So far: Fuse is good Switches swapped over and work in the opposite circuit Where to next? I've found a thread suggesting the relay behind the cluster, but this problem pertains to just the driver window circuit (#7 fuse I think). Wouldn't I lose all 4 windows if the relay was bad? Any help appreciated. Thanks- |
#2
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There are two fuses than control the power windows. The windows are fused in pairs, ie. Front Left & Rear Right (Fuse #7), Front Right & Rear Left (Fuse #8). So, if there's a fuse fault, you lose two windows diagonally.
The power windows are also wired to a relay in the fuse box, on the far left side of the box, in the row of relays between the fuses and the large multifunction relay. |
#3
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Troubleshooting still...
I was told there is a relay behind the speedo cluster that may be at fault too?
I was getting a clicking noise down to the motor in the door, but no action. I took out the window motor and bench tested. Motor would not budge with direct connect to 12V battery. Switched wires with same results. Hope I'm on the right path. I scored a used regulator assy on ebay today. I'm thinking this might be 2 dead window motors rather than a bad fuse or relay. Will install the driver door motor when it arrives and see if it has any effect on the pass rear door. |
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