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Home >> Buick >> 2006 >> Rainier 4.2 S, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - 4.2L - Introduction (2 Of 2) >> Schematic & Routing Diagrams >> Engine Controls Schematics
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Engine Controls Schematics

Fig 1: Module Power, Ground, Serial Data, and MIL
GM1593981Courtesy of GENERAL MOTORS CORP.
Fig 2: Underhood Fuse Block - PWR/TRN Relay
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Fig 3: Engine Data Sensors - 5-Volt and Low Reference
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Fig 4: Engine Data Sensors - Pressure and Temperature
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Fig 5: Engine Data Sensors - Oxygen Sensors
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Fig 6: Engine Data Sensors - Throttle Actuator Controls and VSS
GM1593986Courtesy of GENERAL MOTORS CORP.
Fig 7: Ignition Controls - Ignition Coils
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Fig 8: Ignition Controls - Sensors
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Fig 9: Fuel Controls - Fuel Pump and Fuel Injectors
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Fig 10: Fuel Controls - EVAP Controls
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Fig 11: Device Controls - K18
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Fig 12: Controlled/Monitored Subsystem References
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Fig 13: Transmission Control References - A/T
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