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If its got climatronic just lower the car interior temp with the ble buttons and make sure the little econ symbol is not showing....if its got climatic you just press the a/c button
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first off learn how AC works, for sure this, set of hard logic, in the system for self preservation.
and if you had used the OBD2 SCAN TOOl first after fuses checked
you'd already know this.
high/low, R134 pressure switch tripped saving the full destruction of the compressor. a volt meter finds this truth also.
the controller AC also cuts AC if engine overheats or the sensor lies.
the control AC cuts AC at wide open throttle.WOT
AC cuts AC if engine IN gross DTC errors, or in limp-home mode to protect it and the driver, so more power is on tap from engine.
evap core sensor , sees freeze up and icing, Ice can do damage so it cut the compressor dead(means clutch off line)
the controller detects ambient temps WAY to low and cuts AC.
The dash controller AC is failing, but manual AC? not really if it's lamp glows for AC , the main controller is BCM on most cars.
the dash HVAC blower must not be dead or AC stay off line
The fan is connected to the ac circuit to move air through the condensor in front of the radiator when the ac is turned on . This is to stop high head pressures in the ac and prevent damage to the compressor. There may be a problem with a coolant sensor that is turning the fan on otherwise so run fault codes and see if anything comes up
WELL TURN ON AC MAX COLD HIGH TO SEE IF COOLANT FANS TURN ON.IF NOT YOUR REFRIGERANT SO LOW THAT THE AC REFRIGERANT PRESSURE SENSOR WONT CLOSE CIRCUIT TO TURN ON COOLING FANS.MEANING YOU NEED HAVE AC CHECKED AND CHARGED.ALSO CHECK COMPRESSOR FOR POWER IF NOT YOU HAVE BLOWED FUSE OR BAD RELAY.IF FUSE AND RELAY GOOD YOUR AC COMPRESSOR CLUTCH COIL OPEN OR THE AC CONTROL SWITCH IS BAD.IF COMPRESSOR IS RUNNING WHEN YOU TURN ON AC YOUR AIR TEMPERATURE ACTUATOR NOT WORKING.
The ac pump has a clutch coil,it is activated with the ac button,and then the middle of the pulley will turn this is the clutch,it only turns with the ac on,then when it is turned off,the pulley just turns not the whole clutch,so this is normal.
You have a blend door actuator motor that is not working,they are hard to get to,the dash has to be removed,and pulled back toward the seats to access the actuator motor.
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