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Well, I received the replacement chip and soldered it in. Not my best work but the waterproof protective coating was a pain to deal with. I had to do a lot of tip cleaning to make sure the joints were clean. I also damaged the trace at pin 6 so I had to add a wire to make up for it. It is one of the chip grounds.
Unfortunately this didn't 100% repair the issue and I think when this chip died it damaged the chip that controls the setting of the taillight between marker and brake. Right now the repair is working intermittently, about 50% of the time. On several occasions I have heard an electric humming like a transformer by the taillight right before it throws the warning light. This makes me think that there is a high-frequency switching part of the assembly that has been damaged. Is anyone familiar with the basic circuity of the LCM and what part I should look for next?
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2001 3.0 X5 5M - 227k - "Station Wagon according to the great communist state of IL"
1995 M3 5M - 230k and waiting for a new head gasket
1988 325i Auto Convertible - sold
1992 318i 5M Convertible - sold
1992 325i 5M Convertible - sold
2001 330i 5M Convertible - The more money I put in, the better it gets...
1998 K1200RS - Done all 48 Contiguous States, looking forward to Alaska at some point in my life
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