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Home >> Nissan-Datsun >> 2017 >> Pathfinder SL, FWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0603: ECM >> DTC Description >> DTC Detection Logic

DTC Detection Logic

DTC CONSULT screen terms
(Trouble diagnosis content)		 DTC detection condition
P0603 ECM BACK UP/CIRCUIT
[Internal control module keep alive memory (KAM) error]		 Diagnosis condition Ignition switch ON
Signal (terminal) -
Threshold
  • Malfunction in the internal back up RAM of ECM
  • Malfunction in the internal EEP-ROM system of ECM
Diagnosis delay time -
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