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I found this extra plug on the wiring harness of my ac compressor and I wanted to see if anyone had some insight.
These are some pictures I took, I would appreciate any help on identifying what this plug goes to.
For 1997 I show a red/yellow and green/orange wire going to AC cutoff pressure switch, should be on one of the AC lines
Compressor shouldn't come on without it being plugged in or jumpered
only problem I have with the plug is that there is no connector anywhere to plug it in and the only other place that see those wire colors is on the connector on the condenser on the opposite side of the engine. I can’t even find evidence of a plug for that connector anywhere, let alone near the compressor
If the other AC pressure switch is plugged in then the red/yellow wire should have 12volts with Key on and AC selector on, engine can be off, no 12v with AC selector off
That would confirm that's what its for
The green/orange wire runs back to the AC compressor relay(WOT relay) in engine fuse box
I have a 94 Ranger 4.0L and I swapped Engines from a junkyard. The harness for the junkyard motor didnt have that extra plug for the A/C? I'm thinking the junkyard motor didnt have A/C. My Engine has A/C and the harness has that extra plug. I didnt know until I put it all together. Anyway I believe that plug plugs into the A/C line coming off the Condenser. It's the line thats on the Drivers side. The bigger of the two A/C lines that come off the Condenser. Hope that helps some.
