I have a 1985 XJ with climate control issues.
The PO had replaced the amp. When I checked for an ohm between the red and purple wires, I got 0 ohms. I tried to power it up with a 9 volt battery. No luck.
I pulled the whole servo unit out of the car and tried to power it up. Nothing.
Doesn’t seem easy to remove the servo motor.
I am also trying to check to feedback pot but I don’t think I can if servo motor doesn’t want to move.
Should I just try to get a used servo control unit on ebay?
Also, I checked the main temperature pot by disconnecting the blue and white wires and read 0 ohms no matter what position I turned temp knob.
Can I replace it with any 10k pot or should it be a certain type of potentiometer.?
P.S, I was able to get the servo motor to work using a car battery power.
Looks the issue is the feedback pot. I have to find a replacement. What is the latest on feedback pot replacement? I noticed many 2k pots on ebay but does anyone know which one would be a direct replacement?