Engine Controls Schematics

WARNING: This page is about a different car, the 2007 GMC Sierra, 2007 GMC Cab & Chassis Sierra, 2007 Chevrolet Silverado, and 2007 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

GM1844395

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Fig 2: 5-Volt and Low Reference

GM1844396

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Fig 3: Engine Data Sensors - Pressure and Temperature

GM1844398

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Fig 4: Engine Data Sensors - Heated Oxygen Sensors

GM1844399

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Fig 5: Engine Data Sensors - Throttle Controls

GM1844401

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

GM1844403

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

GM1844404

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Fig 8: Ignition Controls - Sensors

GM1844405

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Fig 9: Fuel Pump Controls L76, LY5

GM1844406

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Fig 10: Fuel Pump Controls LMG, LC9

GM1844408

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Fig 11: Fuel Controls - Fuel Injectors

GM1844409

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Fig 12: Fuel Controls - EVAP Controls

GM1844411

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Fig 13: Controlled/Monitored Subsystem References

GM1844412

Courtesy of GENERAL MOTORS CORP.