Engine Controls Schematics

WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power, Ground, MIL & DLC Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Engine Data Sensors, 5-Volt Reference Bussing Schematic

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Fig 3: Engine Data Sensors - Pressure, Temp & MAF/IAT Schematic

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Fig 4: Engine Data Sensors, HO2S Schematic

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Fig 5: Engine Data Sensors, APP & Throttle Body Assembly Schematic

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Fig 6: Ignition Controls Schematic - 1 Of 2

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Fig 7: Ignition Controls Schematic - 2 Of 2

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Fig 8: Fuel Controls Schematic

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Fig 9: CKP, CMP & Knock Sensors Schematic

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Fig 10: EVAP Controls Schematic

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Fig 11: EGR & Secondary Air Injection (AIR) Schematic

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Fig 12: Controlled/Monitored Subsystem References Schematic

Courtesy of GENERAL MOTORS CORP.