ac compressor not engaging

[.95stang.]

ok but do i disconnect the harness from the ccrm and check the voltage? or do i probe the wires while connected cus there was no voltage present when disconnected in pins 23 or 22

 

[HISSIN50]

It has to be connected.

 

[.95stang.]

ok. but in what wire should i see voltage on the high pressure switch? im confused. on the dg/o or another one?

 

[.95stang.]

ok no voltage on dg/o, blk/yell, pnk/yell

 

[HISSIN50]

If you had 12V leaving the LPCS (not just going into it) and your WOT relay testing is correct, there should be an open in the wire between the LPCS and the WOT relay. This is not real likely.

If you disconnect the LPCS (and remove whatever jumper you're using) and unplug the CCRM electrical connector, you can do a continuity test on both ends of the input wire.

 

[.95stang.]

the lpcs is the one on the accumulator? i found 12v on the wire that is either purple or pink but found no voltage on the high pressure switch. so the power goes from the lpcs to the high pressure switch to the ccrm to the a/c compressor. is that right?

 

[.95stang.]

what color wire should i check for continuity? and its from the lpcs to the ccrm correct?

 

[HISSIN50]

Going off memory, it's dk grn/or. Yes, it's one wire you're checking (along its run from the LPCS to the CCRM).

 

[HISSIN50]

And did you confirm that Pink/yel does not show continuity to ground?