This is pretty basic but if the black wire is connected to ground and I touch the orange/black wire with a hot lead, (using test light connected directly to the battery hot) shouldn't the blower start working? Instead, the test light glows yellow indicating that the orange/black is grounded as well as the black. Do I have a bad blower motor? This is an AC car. Do I have to remove the entire AC under-dash to replace the blower fan?
Take the test light out of the circuit,its acting as a resistor...Sounds like you have a short in the blower motor.You are testing at the leads directly to the blower right??? You have isolated it from the rest of the heater/ac circuit???
correct. the black is still connected to chassis ground, orange/black is removed from spade connector. I am plugging the test light directly into the end of the orange/black female end.
and the other end of the test light is connected to battery power???If so take it out of the equation and use a jumper wire.Also use a seperate ground wire.Ground the motor directly to the battery ground.Use a fuse between the hot jumper and battery.I think that motor uses a 20 amp???fuse??If it still doesnt work.you have a broken wire at the motor or its shorted/frozen up...time to R/R
Just connect a wire to the motor's orange wire. Your "ground" is through the motor the test light is telling you that your motor has a good ground.
No need to remove the entire heater/ac box to remove the fan on a factory AC car. Remove floor vents. There is a nut up inside where the floor vent was mounted. Remove nut and spin/twist the fan housing off.
They come out pretty easy, just make sure you have it seated properly before you spin it when reinstalling, sometimes the top pin can be tricky.
There is no need to remove it at all YET. run a hot wire to the orange/black wire and see if it turns.
OK OK OK.... I'll do that. I thought that the HOT test light would act as a hot wire. I'll remove the test light from the equation and run jumper cables from the battery. On a side note.... I'd like to inform you all that if you touch the antenna cable for your stereo while holding a hot wire, you will get shocked. LOL Thank you all for your input. stay tuned for updates.
alright.... 2 hrs and 3 beers later, I think I found it. It is the switch. I wired the blower fan directly and it starts to work. I put power to individual wires from the back of the switch and the blower works. But if I put power to the input line (brown/orange) I cant get the switch to turn the fan at any speed setting. I removed the switch and started testing it directly by putting power to the main power spade and testing each of the output spades. The only one to work is the one that had green connected. Not sure what that was. Its not on the diagram.
Hmmmm, doesn't that resistor thingy have something to due with the different speeds? It's the red thing with the plug on it, attached to the heater box????
The resistor would vary the speed based on the amnt of pwr it gets correct? I can only get power to it if I bypass the switch.
