P1065 Volkswagen ECM Power Supply Circuit
Possible causes
– ECM Harness power supply circuit is open or shorted
– ECM Harness ground supply circuit is open or shorted
– ECM may be faulty
– ECM Harness ground supply circuit is open or shorted
– ECM may be faulty
What about the obd code?
ECM back-up RAM system does not function properly.
Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
P1065 Volkswagen Description
Battery voltage is supplied to the Engine Control Module (ECM) even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc.
Volkswagen Vehicle:Volkswagen CC,Volkswagen Eos,Volkswagen Golf,Volkswagen GTI,Volkswagen Jetta,Volkswagen New Beetle,Volkswagen Passat,Volkswagen Routan,Volkswagen Tiguan,Volkswagen Touareg,Volkswagen Beetle,Volkswagen Golf,Volkswagen Polo,Volkswagen Touran,Volkswagen up,Volkswagen Sharan,Volkswagen Santana,Volkswagen Lavida