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Old 11-18-2016, 11:19 PM
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Default LCM Issues

I have a basket case 1997 740iL. Water damage from sitting for 4 years killed the underfloor fuse box and had a bit of corrosion in the original LCM. Everything has been repaired for the most part over the last 2 years.

Original LCM would not work and when it did random lights would flicker on and off.

My LCM was a HW3.1 and I snagged a 97 e39 HW3.2 LCM. With the e39 LCM headlights are on and brake lights work. I can't communicate to it at all. Checked the k-line and has continuity to the 20pin. Even went as far as bridging pins 17 and 20 so I can access everything from the inside OBD port. PA Soft 1.4 along with INPA working with every module in the car....but no connection to the LCM so far.


What would you guys suggest?


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