Quote:
Originally Posted by SuperSub7
Your AC control issue in the 2013 FRS could be caused by a faulty blower motor resistor. It controls fan speeds, and if it's failing, it may not work correctly at lower speeds (1st). You should check out the blower motor resistor.
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I just took the resistor out and checked it. Its not at the correct specs but doesnt seem to be so far out as to make the AC act as it does. To clarify the AC is still -off- when switching to 1 on the fan. Not low. The AC light on the heater control doesnt turn on until I switch the fan to 2.
Heres what I measured at the resistor connections vs what its supposed to be IAW the manual:
Ohms b/w 1-4: 3.5 measured (2.92 per manual)
Ohms b/w 1-3: 1.1 measured (0.44 per manual)
Ohms b/w 1-2: 1.8 measured (1.12 per manual)
Would this difference in resistors cause this issue?
Also when I turn the car on (with the fan in 4) you can hear it (assuming the blower?) click, whirr on then stop. It doesnt come on again as you change settings until you turn the car off and on again. It does blow air tho… at the selected temperature, just not at any increased intensity on fan speeds 2,3&4