Engine Controls Schematics

WARNING: This page is about a different car, the 2008 GMC Envoy and 2008 Chevrolet TrailBlazer. 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: Underhood Fuse Block - PWR/TRN Relay Schematic - 1 of 2

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Fig 3: Underhood Fuse Block - PWR/TRN Relay Schematic - 2 of 2

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Fig 4: Engine Data Sensors - 5-Volt & Low Reference Schematic

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Fig 5: Engine Data Sensors - MAF, Pressure, Temperature & VSS Schematic

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Fig 6: Engine Data Sensors - Oxygen Sensors Schematic

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Fig 7: Engine Data Sensors - Throttle Actuator Controls Schematic

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Fig 8: Ignition Controls Schematic - Ignition Coils 1, 3, 5 & 7

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Fig 9: Ignition Controls Schematic - Ignition Coils 2, 4, 6 & 8

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Fig 10: Ignition Controls Schematic - Sensors & DOD Controls

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Fig 11: Fuel Controls - Fuel Pump & Fuel Injectors Schematic

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Fig 12: Fuel Controls - EVAP Controls Schematic

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Fig 13: Controlled/Monitored Subsystem References Schematic

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