Engine Controls Schematics

WARNING: This page is about a different car, the 2004 Pontiac Sunfire and 2004 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

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

GM783401

Courtesy of GENERAL MOTORS CORP.

Fig 2: 5-Volt & Low Reference Bussing Schematics

GM788898

Courtesy of GENERAL MOTORS CORP.

Fig 3: Engine Data Sensors - Pressure & Temperature Schematics

GM783404

Courtesy of GENERAL MOTORS CORP.

Fig 4: Heated Oxygen Sensors Schematics

GM783405

Courtesy of GENERAL MOTORS CORP.

Fig 5: Ignition Controls Schematics

GM783407

Courtesy of GENERAL MOTORS CORP.

Fig 6: Fuel Delivery Schematics

GM783409

Courtesy of GENERAL MOTORS CORP.

Fig 7: Transmission Controls - A/T Schematics

GM783416

Courtesy of GENERAL MOTORS CORP.