Engine Controls Schematics

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Power, Ground, Serial Data and MIL (LAT/LE5/LE9)

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Fig 2: Engine Data Sensors - 5-Volt and Low Reference (LAT/LE5/LE9)

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Fig 3: Engine Data Sensors - Pressure, Temperature and MAF/IAT (LAT/LE5/LE9)

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Fig 4: Engine Data Sensors - Heated Oxygen Sensors (HO2S) (LAT/LE5/LE9)

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Fig 5: Ignition Controls - Ignition System (LAT/LE5/LE9)

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Fig 6: Ignition Controls - Camshaft (CMP), Crankshaft (CKP) and Knock (KS) Sensors (LAT/LE5/LE9)

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Fig 7: Fuel Controls - Fuel Injectors (LAT/LE5/LE9)

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Fig 8: Fuel Controls - Fuel Pump Control Module (LAT/LE5/LE9)

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Fig 9: Fuel Controls - Evaporative Emissions (EVAP) Controls (LAT/LE5/LE9)

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Fig 10: Secondary Air Injection (AIR) Pump (LE5/LE9 with NU6)

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Fig 11: Controlled/Monitored Subsystem References (LAT/LE5/LE9)

Courtesy of GENERAL MOTORS CORP.