Still no A/C
#1
Still no A/C
So I’ve replaced the blower motor and blower motor resistor. My A/C clutch is good and I can feel cold air through the vents as I speed up. For some reason my fan is still not coming on speeds 1-4. I’ve already pulled the dash to start pulling the control unit. Does anyone have any troubleshooting ideas? Or am I just best off getting a new controller?
#3
It’s a 2000 and no, no speeds work at all. I just know the condenser is good because it cools down when the clutch engages. I just can’t get the fan to turn on.
#4
I am assuming manual AC because you said blower motor resistor.
Check the HVAC fuse 9 - 20A in the IP fuse block
Check the HVAC fuse - 30A under the hood
If no joy yet will it be easier to test the voltages at the blower resistor or the HVAC relay?
George
Check the HVAC fuse 9 - 20A in the IP fuse block
Check the HVAC fuse - 30A under the hood
If no joy yet will it be easier to test the voltages at the blower resistor or the HVAC relay?
George
#6
First make sure that you have 12v coming into the controls on the brown wire at the control Head connector. There are three brown wires. Two are power out to the resistor bridge and the third is the one we want, it is power from the HVAC9 fuse.
Then with the mode switch on anything but off and the fan speed on med 1 (the second fan speed), is there power on the tan wire from the control head to the resistor bridge?
with fan on high is there 12v on pin 86 in the blower motor relay socket or alternately on the associated orange wire from the control head to the blower motor relay socket?
George
Then with the mode switch on anything but off and the fan speed on med 1 (the second fan speed), is there power on the tan wire from the control head to the resistor bridge?
with fan on high is there 12v on pin 86 in the blower motor relay socket or alternately on the associated orange wire from the control head to the blower motor relay socket?
George