Engine Controls Schematics

WARNING: This page is about a different car, the 2005 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

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

GM1467900

Courtesy of GENERAL MOTORS CORP.

Fig 2: Engine Data Sensors - 5-Volt References Circuit Wiring Schematic

GM1452746

Courtesy of GENERAL MOTORS CORP.

Fig 3: Engine Data Sensors - Low References Circuit Wiring Schematic

GM1458115

Courtesy of GENERAL MOTORS CORP.

Fig 4: Engine Data Sensors - Temperature, VSS, MAF & Extended Brake Travel Switch Schematic

GM1485862

Courtesy of GENERAL MOTORS CORP.

Fig 5: Engine Data Sensors - HO2 Sensors Circuit Wiring Schematic

GM1254380

Courtesy of GENERAL MOTORS CORP.

Fig 6: Electronic Throttle Controls Circuit Wiring Schematic

GM1465160

Courtesy of GENERAL MOTORS CORP.

Fig 7: Ignition System Circuit Wiring Schematic

GM1254396

Courtesy of GENERAL MOTORS CORP.

Fig 8: Ignition Control Sensors Circuit Wiring Schematic

GM1254402

Courtesy of GENERAL MOTORS CORP.

Fig 9: Fuel Controls Schematic - Fuel Pump & Fuel Injector Controls

GM1458123

Courtesy of GENERAL MOTORS CORP.

Fig 10: Fuel Controls Schematic - EVAP Controls

GM1429609

Courtesy of GENERAL MOTORS CORP.

Fig 11: Controlled/Monitored Subsystem References Circuit Wiring Schematic

GM1254424

Courtesy of GENERAL MOTORS CORP.