so I disconnected the plug near the radiator cap and used power prob to apply power unfortunately I can.only do 12v so the engine fan solenoid clicked and fan took off like a 747. but when I plug it back in ot.only.runs at a.slow idle speed? but I have check engine lamp on. I don't have a brb3 to manually test it.
Maybe there was just a bad contact in the solenoid connector, which you solved by removing it and reconnecting it. If it comes back, it could be an internally broken wire, which sometimes makes and sometimes doesn´t make contact.
JEEP Grand Cherokee 4.7 Lmtd 2004
HID 8000K in low and fog / Quad Squad member
KYB Gas-a-Just shocks / Pirelli Scorpion ATR 245/65/17 - Transgo reprogramming shiftkit.