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Home >> Chevrolet >> 2005 >> Avalanche 2500 >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Engine Controls - 4.3L (Introduction)) >> Schematic and Routing Diagrams >> Engine Controls Schematics
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Engine Controls Schematics

WARNING: This page is about a different car, the 2005 GMC Sierra and 2005 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Module Power, Ground, Serial Data & MIL Schematic
GM1540434Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors Schematic (5-Volt & Low References)
GM1540438Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors Schematic (Pressure, Temperature, MAF & VSS)
GM1540441Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors Schematic (Oxygen Sensors)
GM1540443Courtesy of GENERAL MOTORS CORP.
Fig 5: Ignition Controls Schematic
GM1540446Courtesy of GENERAL MOTORS CORP.
Fig 6: Fuel Controls Schematic (Fuel Pump Controls & Fuel Injectors)
GM1540448Courtesy of GENERAL MOTORS CORP.
Fig 7: Fuel Controls Schematic (EVAP & Device Controls)
GM1540451Courtesy of GENERAL MOTORS CORP.
Fig 8: Transmission and Controlled/Monitored Subsystem References Schematic
GM1540454Courtesy of GENERAL MOTORS CORP.