Engine Controls Schematics. Chevrolet Blazer

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2004 🢒 Blazer - 4WD 🢒 Body 🢒 Body Control System 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Pressure and Temperature OBD II Symbol Description Notice B+ Bus Bar ECM I Fuse TURN, SIR and GAUGES Fuses TURN, SIR and GAUGES Fuses Indicators Class 2 Serial Data G103 and G105
Figure 2:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Air Intake System Description Engine Data Sensors - MAF and VSS Module Power, Ground, Serial Data and MIL OBD II Symbol Description Notice
Figure 3:	Engine Data Sensors - MAF and VSS Master Electrical Component List Air Intake System Description Oxygen Sensors - Except NM8 Engine Data Sensors - Pressure and Temperature OBD II Symbol Description Notice Ign RUN and START Bus Bar ENG I and OXYSEN Fuses Gages G103 and G105 VSS Inputs, 4WD Low Indicator Signal Vehicle Speed Sensor - VSS
Figure 4:	Heated Oxygen Sensors - Except NM8 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Ignition System and Sensor Engine Data Sensors - MAF and VSS OBD II Symbol Description Notice Ign RUN and START Bus Bar
Figure 5:	Ignition Controls - Ignition System and Sensors Master Electrical Component List Distributor Ignition (DI) System Description Fuel Controls - Fuel Pump Controls Oxygen Sensors - Except NM8 OBD II Symbol Description Notice ECM I Fuse Gages G103 and G105 G103 and G105
Figure 6:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Fuel System Description Fuel Controls - Fuel Injector Controls Ignition Controls - Ignition System and Sensor OBD II Symbol Description Notice ECM B, HORN, RR DEFOG, HTD MIR Fuses and Fuel Pump, Horn, Rear Window Defogger Relays G102 - Except Export G402 and G421 - Utility
Figure 7:	Fuel Controls - Fuel Injector Controls Master Electrical Component List Fuel System Description Fuel Controls - EVAP Controls Fuel Controls - Fuel Pump Controls OBD II Symbol Description Notice ECM I Fuse
Figure 8:	Fuel Controls - EVAP Controls Master Electrical Component List Evaporative Emission Control System Description Device Controls, Controlled/Monitored Subsystem References, and M/T Fuel Controls - Fuel Injector Controls OBD II Symbol Description Notice ENG I and OXYSEN Fuses Ign RUN and START Bus Bar
Figure 9:	Device Controls, Controlled/Monitored Subsystem References, and M/T Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T Fuel Controls - EVAP Controls OBD II Symbol Description Notice Compressor Controls-4.3L Front Axle Switch and Powertrain Control Module Speed Sensor Signals Engine Charging Clutch Pedal Position Switch, Stop Lamp Switch, PCM and Cruise Control Module Shift Indicator Front Axle Switch and Powertrain Control Module CRANK Fuse, Front Axle Indicator Switch, and Front Axle Vacuum Solenoid Fuel Level Sensor Signal
Figure 10:	Transmission Controls - A/T Master Electrical Component List Powertrain Control Module Description Device Controls, Controlled/Monitored Subsystem References, and M/T OBD II Symbol Description Notice Switch Inputs and PNP Switch Valve Controls