Re: AC pump magnetic clutch
The pressure in the A/C system shouldn´t be the problem Dave, because by jumping the relay points 30 to 87, the clutch is activated directly, independent of the A/C pressure. The A/C relay is switched by the PCM, and this yes depends on the pressure in the A/C system ( and more inputs).
Good idea though to check if voltage is available at the clutch connector, because when the fuse is ok, it could still be a wire problem.
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
Monroe Reflex shocks /
Pirelli Scorpion ATR 245/65/17/
Transgo reprogramming shiftkit.