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Engine Controls Schematics

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2005 Isuzu Ascender, 2005 GMC Envoy XUV, 2005 GMC Envoy XL, 2005 GMC Envoy, and 2005 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.

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

GM1430604

Courtesy of GENERAL MOTORS CORP.

Fig 2: Engine Data Sensors - 5-Volt and Low Reference

GM1430606

Courtesy of GENERAL MOTORS CORP.

Fig 3: Engine Data Sensors - Pressure and Temperature

GM1430608

Courtesy of GENERAL MOTORS CORP.

Fig 4: Engine Data Sensors - Oxygen Sensors

GM1430612

Courtesy of GENERAL MOTORS CORP.

Fig 5: Engine Data Sensor - Throttle Actuator Controls and VSS

GM1430614

Courtesy of GENERAL MOTORS CORP.

Fig 6: Ignition Controls - Ignition System

GM1430618

Courtesy of GENERAL MOTORS CORP.

Fig 7: Ignition Controls - Sensors

GM1430620

Courtesy of GENERAL MOTORS CORP.

Fig 8: Fuel Controls - Fuel Pump Controls and Fuel Injectors

GM1430622

Courtesy of GENERAL MOTORS CORP.

Fig 9: Fuel Controls - EVAP Controls

GM1430623

Courtesy of GENERAL MOTORS CORP.

Fig 10: Device Controls

GM1430626

Courtesy of GENERAL MOTORS CORP.

Fig 11: Controlled/Monitored Subsystem References

GM1430627

Courtesy of GENERAL MOTORS CORP.

Fig 12: Transmission Control References - A/T

GM1430629

Courtesy of GENERAL MOTORS CORP.