P0603 Internal Control Module Keep Alive Memory (KAM) Error: DTC Detecting Condition

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DTC P0603 DETECTING CONDITION REFERENCE

Item	Detecting Condition	Possible Cause
DTC Strategy	Read/write Error	Faulty TCM
Enable Conditions	"IG" "KEY" ON
Threshold Value	Checksum in RAM is different from EEPROM
Diagnostic Time	More than 1 time different value detection
Fail Safe	TCU uses the default value as the initial value for EEPROM