Engine Controls Schematics

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

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

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Fig 2: 5 Volt and Low Reference Schematic

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Fig 3: Engine Data Sensors Schematic - Pressure, Temperature & Throttle Control

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Fig 4: Engine Data Sensors Schematic - HO2S, Stop Lamp Switch Signal & Vehicle Speed Signal

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

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

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Fig 7: Ignition Controls Schematic - Sensors

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Fig 8: Fuel Controls Schematic - Fuel Injectors, and Fuel Pump Controls

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Fig 9: Fuel Controls Schematic - EVAP Controls

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Fig 10: Monitored/Controlled Subsystem References Schematic

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