Diagnosis Procedure
WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ECM POWER SUPPLY AND GROUND CIRCUIT
Perform trouble diagnosis for ECM power supply and ground circuit. Refer to "DIAGNOSIS PROCEDURE ".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair or replace error-detected parts.
- CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to "INTERMITTENT INCIDENT ".
Is the inspection result normal?
YES: GO TO 3.
NO: Repair or replace error-detected parts.
- PERFORM DTC CONFIRMATION PROCEDURE
- Turn ignition switch ON.
- Erase DTC.
- Perform DTC confirmation procedure. Refer to
"DTC LOGIC ".
Is the 1st trip DTC P0603 displayed again?
YES: Replace ECM.
NO: INSPECTION END