P0594 Buick 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)
Buick Vehicle:Buick Regal – ?Buick Riviera – ?Buick LaCrosse – ?David Dunbar Buick – Buick Century – Buick LaCrosse – Buick LeSabre – Buick Lucerne – Buick Park Avenue – Buick Regal – Buick Verano – Buick Enclave – Buick Encore – Buick Rainier – Buick Rendezvous – Buick Terraza – Buick Riviera