LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Buick >> 2007 >> Lucerne V6-3.8L >> Repair and Diagnosis >> Powertrain Management >> Diagrams >> Electrical Diagrams
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Electrical Diagrams



ENGINE CONTROLS SCHEMATICS

Power, Ground, MIL and DLC







Engine Data Sensors, 5-Volt Reference Bussing







Engine Data Sensors - Pressure, Temp and MAF/IAT







Engine Data Sensors, HO2S







Engine Data Sensors, APP and TAC







Ignition Controls, CKP, CMP, Knock Sensors







Fuel Controls







EVAP Controls







EGR, Secondary Air Injection (AIR)







Controlled/Monitored Subsystem References







Automatic Transmission Controls References







Locations: The locations for the Connectors, Grounds, Splices, and Grommets shown within these diagrams can be found via their numbers at Vehicle Locations. Locations