Engine Controls Schematics

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

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

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Fig 2: Engine Data Sensors - 5-Volt References Circuit Wiring Schematic

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Fig 3: Engine Data Sensors - Low References Circuit Wiring Schematic

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Fig 4: Engine Data Sensors - Temperature, VSS, MAF & Extended Brake Travel Switch Schematic

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Fig 5: Engine Data Sensors - HO2 Sensors Circuit Wiring Schematic

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Fig 6: Electronic Throttle Controls Circuit Wiring Schematic

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Fig 7: Ignition System Circuit Wiring Schematic

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Fig 8: Ignition Control Sensors Circuit Wiring Schematic

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Fig 9: Fuel Controls Schematic - Fuel Pump & Fuel Injector Controls

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Fig 10: Fuel Controls Schematic - EVAP Controls

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Fig 11: Controlled/Monitored Subsystem References Circuit Wiring Schematic

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