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E53
Sorry if was not as clear as hoped. Did replace fsr just based on suggestions I read. But the actual issue is a home made jumper linking a blue color hot 2.5a wire from main fan/aux fan harness to black/slate wire running to air conditioning compressor. It was the culprit. When installed the air conditioning does work and temp controls function as desired. When jumper is removed no air conditioning compressor and no cold air.
I am trying to learn what the blue wire on this harness is actually for? When the two wires the jumper connects make connection the clutch on the air compressor clutch engages and you hear a click. This is with key off after 16 min.
I am now trying to figure out what is preventing the normal activation of the air compressor when jumper is removed.
Final note. Vehicle amp draw after 16 min is 0.02 with jumper removed.
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09-21-2015, 06:29 PM
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