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white AC wire at relay ? AC only works if I jump the relay hots 1998 4.0

blondejoncherokee

NAXJA Member
NAXJA Member
Location
sacramento
ON my crawler the AC used to work. now it suddenly doesn't. has a full charge as of tuesday.

newer Drier, new LP switch . new fuses. If I jump the clutch it works, and if I connect the power wire to the clutch wire at the relay it will run.

So the question is , what does the white wire at the relay do that feeds the relay ? Is it a PCM 12v signal ?
Im guessing it comes from the PCM? I have no clue where to start checking . The other Blue pink wire appears to come from the LP/HP switch.


I need to know if the white is supposed to be 12V or ground.

supposed to leave for Sierra fest in a few hours and have been messing with AC wiring all day and hit a wall.

I also suck at electrical in General.
 
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