Engine Controls Schematics. Buick Century 2004

For 1990-2009 cars only

Makes 🢒 Buick 🢒 2004 🢒 Century 🢒 Engine 🢒 Engine Controls - 3.1L 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - 5 Volt and Low Reference OBD II Symbol Description Notice Fuse Block - Underhood IGN 1 Fuse Fuse Block - Underhood IGN 1 Fuse Fuse Block - I/P CRNK SIG, BCM, CLSTR, IGN0:CLSTR, PCM, BCM, and PRK/LCK Fuses Fuse Block - Underhood B+ Bus Fuse Block - I/P TRN/SIG, AIR BAG, CLSTR, and PCM, BCM U/H Fuses, Fuse Block - Underhood CRANK and IGN MAIN Relays G100, G113, and G171 Data Link Connector (DLC) Schematics
Figure 2:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Pressure and Temperature Module Power, Ground, Serial Data, and MIL OBD II Symbol Description Notice
Figure 3:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - MAF, VSS Engine Data Sensors - 5 Volt and Low Reference OBD II Symbol Description Notice
Figure 4:	Engine Data Sensors - MAF, VSS Master Electrical Component List Powertrain Control Module Description Oxygen Sensors Engine Data Sensors - Pressure and Temperature OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus Fuse Block - Underhood ENG EMIS Fuse G100, G113, and G171 G100, G113, and G171 Gages Fluid Pressure Manual Valve Position Switch, ISS Sensor, and VSS Engine Controls Schematic Icons
Figure 5:	Oxygen Sensors Master Electrical Component List Powertrain Control Module Description Ignition Control Module Engine Data Sensors - MAF, VSS OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus G100, G113, and G171
Figure 6:	Ignition Control Module Master Electrical Component List Electronic Ignition (EI) System Description Fuel Pump Controls Oxygen Sensors OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus Engine Controls Schematic Icons
Figure 7:	Fuel Pump Controls Master Electrical Component List Fuel System Description Fuel Injectors Ignition Control Module OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus G100, G113, and G171 G402, Page 1 of 2 Gages G100, G113, and G171
Figure 8:	Fuel Injectors Master Electrical Component List Fuel System Description EVAP Controls and FTP Sensor Fuel Pump Controls OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus
Figure 9:	EVAP Controls and FTP Sensor Master Electrical Component List Evaporative Emission Control System Description AIR, EGR, and IAC Controls Fuel Injectors OBD II Symbol Description Notice Fuse Block - Underhood B+ Bus Fuse Block - Underhood ENG EMIS Fuse Gages Compressor Controls Compressor Controls
Figure 10:	AIR, EGR, and IAC Controls Master Electrical Component List Exhaust Gas Recirculation (EGR) System Description Controlled/Monitored PCM References EVAP Controls and FTP Sensor OBD II Symbol Description Notice
Figure 11:	PCM References - Controlled/Monitored Subsystem Master Electrical Component List Powertrain Control Module Description PCM References - Transmission Controls AIR, EGR, and IAC Controls OBD II Symbol Description Notice Compressor Controls Compressor Controls Compressor Controls Compressor Controls Compressor Controls Engine Cooling Schematics Charging Indicators, Page 2 of 2 Cruise Control Schematics Starting
Figure 12:	PCM References - Transmission Controls Master Electrical Component List Powertrain Control Module Description Controlled/Monitored PCM References OBD II Symbol Description Notice Solenoid Controls and TFT Sensor Fluid Pressure Manual Valve Position Switch, ISS Sensor, and VSS Internal Mode Switch (IMS) Fluid Pressure Manual Valve Position Switch, ISS Sensor, and VSS