Why won’t the radiator fan come back on?
The car isn’t overheating but the fan won’t work so the air conditioner isn’t working
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The AC, when activated, will send a command signal through the ECM/PCM or BCM to the AC Side Radiator Fan Motor to come on. If that signal is not present at the Motor, then you have to seek out another issue, other than the fan. If the signal is present, and you have a good ground on the motor, then you have a faulty motor. You should be able to hear the AC Compressor engage to help in your troubleshooting.
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