Ford P1065 OBD-II Trouble Code Definition:
P1065 ECM Power Supply Circuit
P1065 Ford OBD-II Trouble CodeDescription:
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
When is the obd code mean?
ECM back-up RAM system does not function properly.
Symptoms
Engine Light ON (or Service Engine Soon Warning Light)
P1065 INFINITI OBD Code 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.