Engine Controls Schematics

WARNING: This page is about a different car, the 2008 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground and Serial Data References

Courtesy of GENERAL MOTORS CORP.

Fig 2: 5-Volt and Low Reference

Courtesy of GENERAL MOTORS CORP.

Fig 3: Engine Data Sensors - Pressure and Temperature

Courtesy of GENERAL MOTORS CORP.

Fig 4: Engine Data Sensors - Heated Oxygen Sensors

Courtesy of GENERAL MOTORS CORP.

Fig 5: Engine Data Sensors - Throttle Controls

Courtesy of GENERAL MOTORS CORP.

Fig 6: Ignition Controls - Ignition System Coils 1, 3, 5 and 7

Courtesy of GENERAL MOTORS CORP.

Fig 7: Ignition Controls - Ignition System Coils 2, 4, 6 and 8

Courtesy of GENERAL MOTORS CORP.

Fig 8: Ignition Controls - Sensors

Courtesy of GENERAL MOTORS CORP.

Fig 9: Fuel Pump Controls

Courtesy of GENERAL MOTORS CORP.

Fig 10: Fuel Controls - Fuel Injectors

Courtesy of GENERAL MOTORS CORP.

Fig 11: Fuel Controls - EVAP Controls

Courtesy of GENERAL MOTORS CORP.

Fig 12: Controlled/Monitored Subsystem References

Courtesy of GENERAL MOTORS CORP.