Possible causes

– Faulty Air Conditioning Clutch Relay
– Air Conditioning Clutch Relay harness is open or shorted
– Air Conditioning Clutch Relay circuit poor electrical connection

When is the code detected?

Code P0647 may be stored if an open or short exists in A/C clutch relay control circuit.

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)

P0647 Description

A/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.

P0647 Information for specific makes

P0647 BMW
P0647 CHRYSLER
P0647 DODGE
P0647 HYUNDAI
P0647 JEEP
P0647 KIA
P0647 MAZDA
P0647 SUZUKI