AC blower wiring help, 1972 Runner

[sco440]

My question pertains to my AC blower wiring. According to my FSM p. 8-154 there is a green wire C5-14DGN attached to the air conditioning motor (assuming this is the blower motor). I have a green wire with a grey plastic boot plug plus a ground on the engine bay side of my blower. The FSM says this wire goes to the # 4 spot in the bulkhead. I am I reading it right? This powers the blower motor? When I hook it up like this I get nothing from my blower switch. What am I doing wrong?

 

[mopar 3 B]

I believe you are. Mine tells me to see that A/C insert with no wire coding on 8-154. The A/C wiring is on 24-65. Have you tested the blower motor to make sure it works? I would go check our 72 RR but it is in Arizona and the GTX is a non-air.

 

[sco440]

THX, it seems to be in the high med low blower motor switch. Got the blower to work by jiggling the switch but only on high level with ac lever on max. I have no med or low blower levels. Took the switch apart and cleaned terminals, no change. Do they go bad?

 

[mopar 3 B]

check the resistor between the switch and fan. If it is bad it is designed to only operate the fan on high.

 

[sco440]

The resistor with the 3 coils in the heater box? How do you check that?

 

[mopar 3 B]

Open resistor wire or fuse wire. Take it out and do a visual.