P0594 GMC Speed Control Servo Circuit
Possible causes
– Faulty Servo Motor
– Servo Motor harness is open or shorted
– Servo Motor circuit poor electrical connection
– Servo Motor harness is open or shorted
– Servo Motor circuit poor electrical connection
What about the obd code?
Open or shorted condition in the cruise control servo circuit
Symptoms
– Engine Light ON (or Service Engine Soon Warning Light)
GMC Vehicle:GMC Acadia,GMC Canyon,GMC Envoy,GMC Savana 1500,GMC Savana 2500,GMC Savana 3500,GMC Sierra 1500,GMC Sierra 2500 HD,GMC Sierra 3500 HD,GMC Terrain,GMC Yukon,GMC Yukon XL 1500,GMC Yukon XL 2500,