LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Infiniti
>>
2012
>>
G25 Base
>>
Repair and Diagnosis
>>
Engine Performance
>>
Testing & Diagnosis
>>
Engine Control System - DTCS P0443 To P1084
>>
DTC P0603: ECM Power Supply
>>
DTC Logic
>>
DTC Detection Logic
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
DTC Detection Logic
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0603
ECM power supply circuit
ECM back-up RAM system does not function properly.
Harness or connectors [ECM power supply (back-up) circuit is open or shorted.]
ECM