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Home >> Chevrolet >> 2004 >> TrailBlazer 5.3 P, RWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.8L, 5.3L, & 6.0L - Introduction >> Schematic and Routing Diagrams >> Engine Controls Schematics

Engine Controls Schematics

Fig 1: Module Power, Ground, Serial Data, and MIL
GM1251393Courtesy of GENERAL MOTORS CORP.
Fig 2: Fuse Block - Underhood, IGN 1 Relay
GM1251394Courtesy of GENERAL MOTORS CORP.
Fig 3: Engine Data Sensors - 5-Volt and Low Reference
GM1251395Courtesy of GENERAL MOTORS CORP.
Fig 4: Engine Data Sensors - Pressure, Temperature, and VSS
GM1251397Courtesy of GENERAL MOTORS CORP.
Fig 5: Engine Data Sensors - Oxygen Sensors
GM1251399Courtesy of GENERAL MOTORS CORP.
Fig 6: Engine Data Sensors - Throttle Actuator Controls
GM1251400Courtesy of GENERAL MOTORS CORP.
Fig 7: Ignition Controls - Ignition System Coils 1, 3, 5, 7
GM1251402Courtesy of GENERAL MOTORS CORP.
Fig 8: Ignition Controls - Ignition System Coils 2, 4, 6, 8
GM1251403Courtesy of GENERAL MOTORS CORP.
Fig 9: Ignition Controls - Sensors
GM1251405Courtesy of GENERAL MOTORS CORP.
Fig 10: Fuel Controls - Fuel Pump Controls and Fuel Injectors
GM1251406Courtesy of GENERAL MOTORS CORP.
Fig 11: Fuel Controls - EVAP Controls
GM1251409Courtesy of GENERAL MOTORS CORP.
Fig 12: Controlled/Monitored Subsystem References
GM1251411Courtesy of GENERAL MOTORS CORP.
Fig 13: Transmission Control References - A/T
GM1251412Courtesy of GENERAL MOTORS CORP.