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Engine Controls Schematics

WARNING: This page is about a different car, the 2005 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Module Power, Ground, Serial Data and MIL
GM1467924Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors - 5-Volt and Low Reference
GM1467930Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors - Pressure, Temperature, MAF and VSS
GM1467931Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors - Oxygen Sensors
GM1467933Courtesy of GENERAL MOTORS CORP.
Fig 5: Engine Data Sensors - Throttle Actuator Controls
GM1467937Courtesy of GENERAL MOTORS CORP.
Fig 6: Ignition Controls - Ignition System Coils 1, 3, 5 and 7
GM1467940Courtesy of GENERAL MOTORS CORP.
Fig 7: Ignition Controls - Ignition System Coils 2, 4, 6 and 8
GM1467942Courtesy of GENERAL MOTORS CORP.
Fig 8: Ignition Controls - Sensors
GM1467945Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Controls - Fuel Pump Controls and Fuel Injectors
GM1467948Courtesy of GENERAL MOTORS CORP.
Fig 10: Fuel Controls - EVAP Controls
GM1467949Courtesy of GENERAL MOTORS CORP.
Fig 11: Transmission and Controlled/Monitored Subsystem References
GM1467951Courtesy of GENERAL MOTORS CORP.