P0603 2012 NISSAN ROGUE - Engine Control Module Power Supply Circuit
Loose or poor battery terminal connection
Low battery charge
Faulty Engine Control Module (ECM)
ECM power supply circuit is open or shorted
ECM Outdated Program
Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. If the code comes back ON you may have to reprogram or replaced ECM
When is the code detected?
Indicates the ECM has experienced an internal memory fault.
Engine Light ON (or Service Engine Soon Warning Light)
Engine may not start
P0603 2012 Nissan Rogue 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.