Operation CHARM
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Infiniti
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1990
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Q45 V8-4494cc 4.5L DOHC (VH45)
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Engine Control Module
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Description and Operation
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Self-Diagnosis System
Self-Diagnosis System
The self-diagnostic system is used to diagnosis malfunctions in major sensors and actuators of the ECCS system. There are two modes in the self-diagnostic system, Modes I and II.