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Section 29 (Engine Control System - 3.5L (L52) - Introduction)
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Schematic and Routing Diagrams
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Engine Controls Schematics
Engine Controls Schematics
WARNING:
This page is about a different car, the 2005 GMC Canyon and 2005 Chevrolet Colorado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Module Power, Ground, Serial Data & MIL Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 2: Engine Data Sensors - 5-Volt & Low Reference Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors - Electronic Throttle Controls, MAF, Pressure & Temperature Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors - Oxygen Sensors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 5: Ignition Controls - Sensors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 6: Ignition Controls - Ignition System Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 7: Fuel Controls - Fuel Pump Controls Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 8: Fuel Controls - Fuel Injectors Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 9: Fuel Controls - EVAP Controls Schematic
Courtesy of GENERAL MOTORS CORP.
Fig 10: Controlled/Monitored Subsystem & Transmission References Schematic
Courtesy of GENERAL MOTORS CORP.