Engine Controls Schematics

Fig 1: Module Power, Ground, Serial Data, and MIL Wiring Diagram

Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuse Block - Underhood Powertrain Relay Wiring Diagram (1 of 2)

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Fig 3: Fuse Block - Underhood Powertrain Relay Wiring Diagram (2 of 2)

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Fig 4: Engine Data Sensors - 5-Volt and Low Reference Wiring Diagram

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Fig 5: Engine Data Sensors - MAF, Pressure and Temperature Wiring Diagram

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Fig 6: Engine Data Sensors - Oxygen Sensors Wiring Diagram

Courtesy of GENERAL MOTORS CORP.

Fig 7: Engine Data Sensors - Throttle Actuator Controls Wiring Diagram

Courtesy of GENERAL MOTORS CORP.

Fig 8: Ignition Controls - Ignition System Coils 1, 3, 5 & 7 Wiring Diagram

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Fig 9: Ignition Controls - Ignition System Coils 2, 4, 6 & 8 Wiring Diagram

Courtesy of GENERAL MOTORS CORP.

Fig 10: Ignition Controls - Sensors Wiring Diagram

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Fig 11: Fuel Controls - Fuel Pump Controls and Fuel Injectors Wiring Diagram

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Fig 12: Fuel Controls - EVAP Controls Wiring Diagram

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Fig 13: Controlled/Monitored Sub-System References Wiring Diagram

Courtesy of GENERAL MOTORS CORP.