Engine Controls Schematics

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground & Serial Data Circuit Schematic

GM2064741

Courtesy of GENERAL MOTORS CORP.

Fig 2: 5-Volt & Low Reference Circuit Schematic

GM2064744

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Fig 3: Engine Data Sensors Circuit Schematic - Pressure & Temperature

GM2064746

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Fig 4: Engine Data Sensors Circuit Schematic - Heated Oxygen Sensors

GM2064833

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Fig 5: Engine Data Sensors Circuit Schematic - Throttle Controls

GM2064835

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Fig 6: Ignition Controls Circuit Schematic - Ignition System Coils 1, 3, 5 & 7

GM2064837

Courtesy of GENERAL MOTORS CORP.

Fig 7: Ignition Controls Circuit Schematic - Ignition System Coils 2, 4, 6 & 8

GM2064839

Courtesy of GENERAL MOTORS CORP.

Fig 8: Ignition Controls Circuit Schematic - Sensors

GM2064841

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Fig 9: Fuel Pump Controls Circuit Schematic (except LY6)

GM2064843

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Fig 10: Fuel Pump Controls Circuit Schematic (LY6)

GM2064845

Courtesy of GENERAL MOTORS CORP.

Fig 11: Fuel Controls Circuit Schematic - Fuel Injectors

GM2064847

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Fig 12: Fuel Controls Circuit Schematic - EVAP Controls

GM2064849

Courtesy of GENERAL MOTORS CORP.

Fig 13: Controlled/Monitored Subsystem References Circuit Schematic

GM2064851

Courtesy of GENERAL MOTORS CORP.