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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 Schematics

GM1430673

Courtesy of GENERAL MOTORS CORP.

Fig 2: Fuse Block - Underhood Powertrain Relay Schematics - 1 of 2

GM1430676

Courtesy of GENERAL MOTORS CORP.

Fig 3: Fuse Block - Underhood Powertrain Relay Schematics - 2 of 2

GM1430681

Courtesy of GENERAL MOTORS CORP.

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

GM1430686

Courtesy of GENERAL MOTORS CORP.

Fig 5: Engine Data Sensors Schematics - MAF, Pressure, Temperature, and VSS

GM1430689

Courtesy of GENERAL MOTORS CORP.

Fig 6: Engine Data Sensors Schematics - Oxygen Sensors

GM1430690

Courtesy of GENERAL MOTORS CORP.

Fig 7: Engine Data Sensors Schematics - Throttle Actuator Controls

GM1430713

Courtesy of GENERAL MOTORS CORP.

Fig 8: Ignition Controls Schematics - Ignition System Coils 1, 3, 5, 7

GM1430715

Courtesy of GENERAL MOTORS CORP.

Fig 9: Ignition Controls Schematics - Ignition System Coils 2, 4, 6, 8

GM1430717

Courtesy of GENERAL MOTORS CORP.

Fig 10: Ignition Controls Schematics - Sensors and Displacement on Demand

GM1430725

Courtesy of GENERAL MOTORS CORP.

Fig 11: Fuel Controls Schematics - Fuel Pump Controls and Fuel Injectors

GM1430733

Courtesy of GENERAL MOTORS CORP.

Fig 12: Fuel Controls Schematics - EVAP Controls

GM1430736

Courtesy of GENERAL MOTORS CORP.

Fig 13: Controlled/Monitored Subsystem Schematics References

GM1430740

Courtesy of GENERAL MOTORS CORP.