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I did the surgery on the right side rear today.
All lights now work reliably - which is an improvement.
Fogs, backup were working intermittently before.
Right brake light was dim. Bad ground contact was found, the likely cause.
Right side "board" had torn months ago and shorted when it tore, creating a burned area with deformed plastic etc. Thus my decision to do some surgery on that side.
Still have the BFW light come on when using the brake. I replaced the rear bulbs in the fall, replaced the center bulb today with a matching one. I think maybe I need to clean up contacts or improve current delivery to the left and/or center bulbs but I'm out of time and patience right now.
I cut off the connector on the right side wire harness and ran wires directly to the appropriate bulb holders. Also a ground wire from each bulb holder, the five ground wires go to a single new ring terminal at the existing ground screw.
I soldered the new wires to each terminal on the right side rear bulb holders. That was a mistake. I ultimately did get good contact. They didn't really want to solder - I think the contacts are either highly chromed, or stainless steel. I did a decent job of wrapping wire around notched parts of the tabs and/or passing it through existing holes. I tried drilling without success. Next time I'd use female spade connectors instead. The tabs do bear on the mount surface when you insert the bulb holders, but spade connectors would not conflict because the pimple bump on the contact is where the pressure is, and slipping on female spade lugs wouldn't interfere with that. Of course you would first get rid of the flex board.
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Sven: '89 245, IPD sways, electric rad. fan conversion, e-codes, 28+ mpg - auto tranny. 850 mi/week commute. '89 245 #2 (wifemobile). '90 244 (spare, runs).
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