Engine Controls Schematics

WARNING: This page is about a different car, the 2005 Buick LaCrosse and 2005 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground, Serial Data, and MIL Schematic

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Fig 2: 5-Volt and Low Reference Schematic - 1 of 2

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Fig 3: 5-Volt and Low Reference Schematic - 2 of 2

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Fig 4: Pressure and Temperature Sensors Schematic

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Fig 5: MAF, VSS and Stop Lamp Switch Schematic

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Fig 6: Oxygen Sensors Schematic

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Fig 7: Electronic Throttle Controls Schematic

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Fig 8: Ignition Controls - Bank 1 (Odd) Ignition Coils Schematic

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Fig 9: Ignition Controls - Bank 2 (Even) Ignition Coils Schematic

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Fig 10: Ignition Controls - Knock and CKP Sensors and Engine Speed Schematic

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Fig 11: Ignition Controls - CMP Sensors and Solenoids Schematic

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Fig 12: Fuel Controls - Fuel Pump and Injectors Schematic

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Fig 13: EVAP Controls Schematic

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Fig 14: Module References Schematic

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