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Home >> Nissan-Datsun >> 2021 >> Maxima SV >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (4 Of 5) >> DTC/Circuit Diagnosis >> P0603 ECM >> DTC Description >> DTC Detection Logic
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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

ECM back up system does not function properly

Diagnosis delay time

--

P062F

CONTROL MODULE

(Internal control module EEPROM error)

Diagnosis condition

Start engine and let it idle

Signal (terminal)

--

Threshold

EEPROM (built-in microcomputer) system internal ECM does not function properly

Diagnosis delay time

--