P0646 Ford

Ford P0646 OBD-II Trouble Code Definition:

P0646 Air Conditioning Clutch Relay Circuit Low

P0646 Ford OBD-II Trouble CodeDescription:

OBD Trouble Code P0646
A/C Clutch Relay Control Circuit Low
What does the code mean? OBD-ii Code P0646 definition:
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.
Symptoms Sumptoms of OBD code P0646
– Engine Light ON (or Service Engine Soon Warning Light)
Causes Causes of the OBD-II code P0646
– Open or short air condition clutch relay circuit – Poor air condition clutch relay electrical connection – Failed air condition clutch relay The Error code is generally activated on detection of the following conditions: Code P0646 may be stored if an open or short exists in A/C clutch relay control circuit.