P0645

Technical Definition:

Air Conditioning (A/C) Clutch Relay Control Circuit

Trouble Code: P0645
Address: 0x0645
System: Powertrain
Subsystem: Computer and Auxiliary Output Circuits
Technical Description:

Possible Causes:

Possible Symptoms:

Air Conditioning Clutch Relay Circuit Malfunction

Possible Solutions:

OBD-II Trouble Code Type:

Diagnostic Step:

Tech Notes:

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

Specific Makes:

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