Car: 1991 318iS with an m50 swap (15k+ miles on the swap, everything worked until recently).
Issue: I have no tach, no interior lights, no clock (6 button OBC swapped out for euro clock), no trunk lights. Everything is connected to fuse 21. The fuse is good. The issue was intermittent, but now is persistent. The week before the issue became persistent, I noticed the clock would run slow after sitting overnight, and occasional while running the tach would drop to zero for a split second. After swapping clusters, cleaning all grounds, battery terminals, I pulled out the wiring schematics ( http://www.wedophones.com/Manuals/BM...g%20Manual.pdf) and a multi-meter. I ripped up the carpet and found splice S319 which has a blue cover. The wires were in tact and OK, but under the blue cover the splice was corroded and broken. Re-spliced all the wires and the tach etc. came back to life.
Issue: I have no tach, no interior lights, no clock (6 button OBC swapped out for euro clock), no trunk lights. Everything is connected to fuse 21. The fuse is good. The issue was intermittent, but now is persistent. The week before the issue became persistent, I noticed the clock would run slow after sitting overnight, and occasional while running the tach would drop to zero for a split second. After swapping clusters, cleaning all grounds, battery terminals, I pulled out the wiring schematics ( http://www.wedophones.com/Manuals/BM...g%20Manual.pdf) and a multi-meter. I ripped up the carpet and found splice S319 which has a blue cover. The wires were in tact and OK, but under the blue cover the splice was corroded and broken. Re-spliced all the wires and the tach etc. came back to life.
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