P0645 - Air Conditioning Clutch Relay Circuit Malfunction
When is the code detected?The P0645 code is stored if an open or short exists in A/C clutch relay control circuit.
P0645 DescriptionA/C clutch relay may also be referred to as A/C compressor clutch relay. A/C clutch relay circuit is monitored when ignition is on and battery voltage is greater than 10.4 volts.
P0645 Information for specific makes
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