Engine Controls Schematics. Buick LaCrosse 2007

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2007 🢒 LaCrosse 🢒 Engine 🢒 Engine Electrical 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Control Module References 5 Volt and Low Reference page 1 of 2 Fuse Block-Underhood B+ Bus G115 (LY7) Ignition Switch Ignition Switch Fuse Block-Underhood B+ Bus Fuse Block - Underhood ABS, TRANS SOL, PCM, SIR, and DIPSLAY Fuses, CRANK Relay, and Fuse Block - I/P CRUISE SW Fuse Ignition Switch Data Link Connector (DLC) Schematics LY7 G115 (LY7)
Figure 2:	5-Volt and Low Reference - 1 of 2 Master Electrical Component List Engine Control Module Description Control Module References 5 Volt and Low Reference Page 2 of 2 Module Power, Ground, Serial Data, and MIL
Figure 3:	5-Volt and Low Reference - 2 of 2 Master Electrical Component List Engine Control Module Description Control Module References Pressure and Temperature Sensors 5 Volt and Low Reference page 1 of 2
Figure 4:	Pressure and Temperature Sensors Master Electrical Component List Engine Control Module Description Control Module References MAF, VSS, and Stop Lamp Switch 5 Volt and Low Reference Page 2 of 2 5 Volt and Low Reference Page 2 of 2 5 Volt and Low Reference Page 2 of 2
Figure 5:	MAF, VSS and Stop Lamp Switch Master Electrical Component List Air Intake System Description Control Module References Oxygen Sensors Pressure and Temperature Sensors Fuse Block-Underhood B+ Bus Fuse Block-Underhood B+ Bus Turn Signal, Hazard and Stop Lamps Outputs Fuse Block - Underhood ETC, ELEK IGN (L26), FUEL INJ (L26), 02 SSR (L26), and EMISSION Fuses Fuse Block - Underhood ETC, ELEK IGN (L26), FUEL INJ (L26), 02 SSR (L26), and EMISSION Fuses Shift and TCC Solenoid Valves, TFT Sensor, and Stop Lamp Switch (LY7) Data Active Brake and Stability Object Detection Schematics 5 Volt and Low Reference page 1 of 2
Figure 6:	Oxygen Sensors Master Electrical Component List Engine Control Module Description Control Module References Electronic Throttle Controls MAF, VSS, and Stop Lamp Switch Fuse Block-Underhood B+ Bus Fuse Block-Underhood B+ Bus Fuse Block - Underhood ETC, ELEK IGN (L26), FUEL INJ (L26), 02 SSR (L26), and EMISSION Fuses Fuse Block - Underhood ETC, ELEK IGN (L26), FUEL INJ (L26), 02 SSR (L26), and EMISSION Fuses Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7) Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 7:	Electronic Throttle Controls Master Electrical Component List Throttle Actuator Control (TAC) System Description Control Module References Ignition Controls - Bank 1 (Odd) Ignition Coils Oxygen Sensors Engine Controls Schematic Icons
Figure 8:	Ignition Controls - Bank 1 (Odd) Ignition Coils Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Ignition Controls - Bank 2 (Even) Ignition Coils Electronic Throttle Controls Fuse Block-Underhood B+ Bus Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7)
Figure 9:	Ignition Controls - Bank 2 (Even) Ignition Coils Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Knock and CKP Sensors and Engine Speed Ignition Controls - Bank 1 (Odd) Ignition Coils Fuse Block-Underhood B+ Bus Fuse Block-Underhood B+ Bus Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7)
Figure 10:	Ignition Controls - Knock and CKP Sensors and Engine Speed Master Electrical Component List Knock Sensor (KS) System Description Control Module References Ignition Controls - CMP Sensors and Solenoids Ignition Controls - Bank 2 (Even) Ignition Coils Data Active Brake and Stability Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 11:	Ignition Controls - CMP Sensors and Solenoids Master Electrical Component List Camshaft Actuator System Description Control Module References Fuel Controls - Fuel Pump and Injectors Knock and CKP Sensors and Engine Speed Fuse Block-Underhood B+ Bus Fuse Block-Underhood B+ Bus Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7) 5 Volt and Low Reference Page 2 of 2
Figure 12:	Fuel Controls - Fuel Pump and Injectors Master Electrical Component List Fuel System Description Control Module References EVAP Controls Ignition Controls - CMP Sensors and Solenoids Fuse Block-Underhood B+ Bus G115 (LY7) Fuse Block-Underhood B+ Bus Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7) Power, Ground, Serial Data, and Gages LY7 G115 (LY7) G302
Figure 13:	EVAP Controls Master Electrical Component List Fuel System Description Control Module References Module References Fuel Controls - Fuel Pump and Injectors Fuse Block - Underhood BATT MAIN 1 Fuse Fuse Block-Underhood B+ Bus Fuse Block-Underhood B+ Bus Power, Ground, Serial Data, and Gages LY7 Fuse Block - Underhood ELEK IGN, FUEL INJ, and 02 SSR Fuses (LY7) 5 Volt and Low Reference page 1 of 2 Compressor Controls and Serial Data (LY7) Compressor Controls and Serial Data (LY7)
Figure 14:	Module References Master Electrical Component List Engine Control Module Description Control Module References EVAP Controls Compressor Controls and Serial Data (LY7) Compressor Controls and Serial Data (LY7) Engine Cooling Schematics Data Active Brake and Stability Starting - LY7 Charging Indicators UH8 Cruise Control Schematics LY7 Internal Mode Switch (LY7)