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Home >> Infiniti >> 2003 >> G35 4D Sedan, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P1065: Engine Control Module Power Supply (Back-Up) >> Possible Causes

Possible Causes

ECM back-up RAM system does not function properly. Possible causes are:

Harness or connectors (ECM power supply back-up circuit is open or shorted).
Defective ECM.

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