Engine Controls Schematics

WARNING: This page is about a different car, the 2004 GMC Savana and 2004 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Module Power, Ground, Serial Data & MIL Schematic

GM1247808

Courtesy of GENERAL MOTORS CORP.

Fig 2: 5-Volt & Low Reference Schematic

GM1247817

Courtesy of GENERAL MOTORS CORP.

Fig 3: Engine Data Sensors - Pressure, Temperature & Position Schematic

GM1247819

Courtesy of GENERAL MOTORS CORP.

Fig 4: Engine Data Sensors - Oxygen Sensors Schematic

GM1247825

Courtesy of GENERAL MOTORS CORP.

Fig 5: Ignition Controls Schematic

GM1247828

Courtesy of GENERAL MOTORS CORP.

Fig 6: Fuel Controls - Fuel Pump Controls Schematic

GM1247830

Courtesy of GENERAL MOTORS CORP.

Fig 7: Fuel Controls - Fuel Injectors Schematic

GM1247835

Courtesy of GENERAL MOTORS CORP.

Fig 8: Fuel Controls - EVAP & Device Controls Schematic

GM1247838

Courtesy of GENERAL MOTORS CORP.

Fig 9: Controlled/Monitored Subsystem & Transmission References Schematic

GM1247841

Courtesy of GENERAL MOTORS CORP.