What happens when the fan is not on on a PT Cruiser?
What happens when the fan is not on on a PT Cruiser?
Since the fan is not on, the freon actually seems to boil in the condenser causing the compressor to cycle and excessive low side pressure because of the condenser not being cooled down Your right about that. than there is two relay in the outside fuse box the control high and low fans.
Why is my Chrysler PT Cruiser not working?
While there are a variety of reasons your Chrysler PT Cruiser air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor. What will be the outcome of an air conditioning system diagnosis?
How does the a / C compressor clutch work on a PT Cruiser?
The A/C low pressure switch is electrically connected in series with the A/C-heater control mode switch and the A/C high pressure switch, between ground and the powertrain control module (PCM). The A/C low pressure switch contact opens or closes the path the ground, signaling the PCM to turn the A/C compressor clutch on and off.
Why is my cooling fan not coming on?
Cooling fan not coming on- replaced a bunch of times, and every time it works for a while then will die… Fan works when I test it out with a ground and a positive wire from the battery. Only overheats when no airflow over the radiator.
Since the fan is not on, the freon actually seems to boil in the condenser causing the compressor to cycle and excessive low side pressure because of the condenser not being cooled down Your right about that. than there is two relay in the outside fuse box the control high and low fans.
The A/C low pressure switch is electrically connected in series with the A/C-heater control mode switch and the A/C high pressure switch, between ground and the powertrain control module (PCM). The A/C low pressure switch contact opens or closes the path the ground, signaling the PCM to turn the A/C compressor clutch on and off.
How does the PCM turn on the radiator fan?
The PCM turns on the fan through either the high or low speed fan relay. The PCM provides a ground to the relay’s control circuit. To control radiator fan operation, the PCM looks at inputs from:? Engine coolant temperature? A/C pressure transducer (turbo only)? Ambient temperature? Vehicle speed?
Where is the ohm meter on a PT Cruiser?
If you have 12 volt here than check the relay for power at pins 25 on the low relay should be hot with the key on and pin 4 on the high relay should be hot with the key on. You will need a volt ohm meter for the tests.
The PCM turns on the fan through either the high or low speed fan relay. The PCM provides a ground to the relay’s control circuit. To control radiator fan operation, the PCM looks at inputs from:? Engine coolant temperature? A/C pressure transducer (turbo only)? Ambient temperature? Vehicle speed?
How does a non turbo radiator fan work?
Non Turbo Fan Opertion: Radiator fan operation is control by the Powertrain Control Module (PCM) with inputs from the temperature of the coolant, which is sensed by the coolant temperature sensor, and vehicle speed which is measured by the vehicle speed sensor. The PCM turns on the fan through either the high or low speed fan relay.
