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                                                      2007 Chevy Truck 5.3 PCM Schematics (4.8 & 6.0L similar)

PCM power, ground, MIL                                   5V and low reference                    Controlled-Monitored Subsystems                    O2 Sensors

MAF, MAP, ECT                                                Throttle Control & APP                Fuel Systems- EVAP Controls                           Fuel Injector Control

Fuel Pump Controls LMG, LY6, LC9               Fuel Pump Controls (gen.)              Ignition Coils 1,3,5,7                                           Ignition Coils 2,4,6,8

CMP, CKP, Knock, AFM (DOD), VVT           Automatic Trans, page 1                Automatic trans. page 2                                      Automatic trans. page 3

Automatic trans. page 4                                   Starting & Charging page 1            Starting & Charging page 2                               Starting & Charging page 3

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