Engine Controls Schematics

WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground and Serial Data

GM1915286

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Fig 2: 5-Volt and Low Reference

GM1915288

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Fig 3: Engine Data Sensors - Pressure and Temperature

GM1915291

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Fig 4: Engine Data Sensors - Heated Oxygen Sensors

GM1915294

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Fig 5: Engine Data Sensors - Throttle Controls

GM1915297

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Fig 6: Ignition Controls - Ignition System Coils 1, 3, 5 and 7

GM1915301

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Fig 7: Ignition Controls - Ignition System Coils 2, 4, 6 and 8

GM1915305

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Fig 8: Ignition Controls - Sensors

GM1915307

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Fig 9: Fuel Pump Controls -LMG/LY6/LC9

GM1915309

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Fig 10: Fuel Pump Controls +LMG/LY6/LC9

GM1915312

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Fig 11: Fuel Controls - Fuel Injectors

GM1915314

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Fig 12: Fuel Controls - EVAP Controls

GM1915316

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Fig 13: Controlled/Monitored Subsystem References

GM1915318

Courtesy of GENERAL MOTORS CORP.