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Isuzu
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2003
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Axiom Base, RWD
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0602 & P0604: Powertrain Control Module Programming Error/Ram Error
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Condition For Setting DTC
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Condition For Setting DTC
Inconsistencies between main CPU and Watchdog CPU software/calibration will set DTC P0602.
Inconsistencies between main CPU RAM and Watchdog CPU RAM will set DTC P0604.