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Home >> Infiniti >> 2015 >> QX60 Base, AWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System (Diagnostic Trouble Codes (DTCS) P014C-P1550) (Except Hybrid) >> DTC/Circuit Diagnosis >> DTC P0603, P062F: ECM KAM/EEPROM Error >> DTC Logic >> DTC Detection Logic
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DTC Detection Logic

DTC No. CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition Possible cause
P0603 ECM BACK UP/CIRCUIT
[Internal Control Module Keep Alive Memory (KAM) Error]
ECM buck up system does not function properly.
  • Harness or connectors

    [ECM power supply circuit is open or shorted.]

  • ECM
P062F CONTROL MODULE
(Internal control module EEPROM error)
EEPROM (built-in microcomputer) system internal ECM does not function properly.