I don't recall seeing this schematic. I didn't finish drawing the schematic on the tach amp that I repaired thus cannot comment if the schematic below is correct or not. The circular connector pinout looks correct though (from memory).
Quote:
Originally Posted by pizzachef
I figured I'd have to move/add some wires to that receptacle, I found this schematic and pinout somewhere on here, can't find where it was again...good thing I copied it. It might be from that long thread that you started about repairing the tach amp 
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85 300D turbo pristine w 157k when purchased 167,870 July 2025
83 300 D turbo 297K runs great. SOLD!
83 240D 4 spd manual- parted out then junked
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