Engine Controls Schematics. Chevrolet TrailBlazer

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2007 🢒 TrailBlazer - 4WD 🢒 Diagnostic Navigation 🢒 Vehicle Diagnostic Information 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Control Module References Underhood Fuse Block - PWR/TRN Relay - 1 of 2 B+ Bus - Underhood Fuse Block Ignition Switch - ACCY/RUN, RUN/START Bus Bars and IGN B Fuse BCK/UP, BTSI, IGN E, TBC IGN 1, and TRLR BCK/UP Fuses BCK/UP, BTSI, IGN E, TBC IGN 1, and TRLR BCK/UP Fuses Power, Ground, Serial Data, and MIL Ignition Switch - ACCY/RUN/START, RUN, and START Bus Bars, IGN A and CRNK Fuses FRT WPR, IGN 0, RAIN, TBC ACC, TBC IG, and TCM Fuses FRT WPR, IGN 0, RAIN, TBC ACC, TBC IG, and TCM Fuses G108 SP205 Power, Ground, and Data Link Connector
Figure 2:	Underhood Fuse Block - PWR/TRN Relay - 1 of 2 Master Electrical Component List Engine Control Module Description Control Module References Underhood Fuse Block - PWR/TRN Relay - 2 of 2 Module Power, Ground, Serial Data, and MIL ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L B+ Bus - Underhood Fuse Block
Figure 3:	Underhood Fuse Block - PWR/TRN Relay - 2 of 2 Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - 5-Volt and Low Reference Underhood Fuse Block - PWR/TRN Relay - 1 of 2 ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L B+ Bus - Underhood Fuse Block
Figure 4:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Engine Control Module Description Control Module References MAF, Pressure, Temperature, and VSS Underhood Fuse Block - PWR/TRN Relay - 2 of 2
Figure 5:	Engine Data Sensors - MAF, Pressure, Temperature, and VSS Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Oxygen Sensors Engine Data Sensors - 5-Volt and Low Reference Underhood Fuse Block - PWR/TRN Relay - 2 of 2 ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L Gages G108
Figure 6:	Engine Data Sensors - Oxygen Sensors Master Electrical Component List Fuel System Description Control Module References Engine Data Sensors - Throttle Actuator Controls MAF, Pressure, Temperature, and VSS Underhood Fuse Block - PWR/TRN Relay - 2 of 2 G108
Figure 7:	Engine Data Sensors - Throttle Actuator Controls Master Electrical Component List Throttle Actuator Control (TAC) System Description Control Module References Ignition Controls - Ignition Coils 1, 3, 5, and 7 Engine Data Sensors - Oxygen Sensors 5.3L/6.0L
Figure 8:	Ignition Controls - Ignition Coils 1, 3, 5, and 7 Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Ignition Controls - Ignition Coils 2, 4, 6, and 8 Engine Data Sensors - Throttle Actuator Controls Underhood Fuse Block - PWR/TRN Relay - 1 of 2 ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L G109
Figure 9:	Ignition Controls - Ignition Coils 2, 4, 6, and 8 Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Ignition Controls - Sensors Ignition Controls - Ignition Coils 1, 3, 5, and 7 Underhood Fuse Block - PWR/TRN Relay - 1 of 2 ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L G109
Figure 10:	Ignition Controls - Sensors Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Fuel Controls - Fuel Pump and Fuel Injectors Ignition Controls - Ignition Coils 2, 4, 6, and 8 Engine Controls Schematic Icons
Figure 11:	Fuel Controls - Fuel Pump and Fuel Injectors Master Electrical Component List Fuel System Description Control Module References Fuel Controls - EVAP Controls Ignition Controls - Sensors Underhood Fuse Block - PWR/TRN Relay - 1 of 2 Underhood Fuse Block - PWR/TRN Relay - 1 of 2 B+ Bus - Underhood Fuse Block G104, G105, and G107 G201 - 2 of 2, and G305
Figure 12:	Fuel Controls - EVAP Controls Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Controlled/Monitored Subsystem References Engine Data Sensors - Throttle Actuator Controls Underhood Fuse Block - PWR/TRN Relay - 2 of 2 B+ Bus - Underhood Fuse Block AUX PWR 1, RR HVAC, SUNROOF, TBC 2, TBC 3, TBC 4, TBC 5, and TCM CNSTR Fuses Fuel Gage ENG 1, ETC, INJA, INJB, O2 SNSR A, O2 SNSR B Fuses - 5.3L/6.0L
Figure 13:	Controlled/Monitored Subsystem References Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Fuel Controls - EVAP Controls Gages Fuel Gage Gages Compressor Controls Compressor Controls Charging System Starting System EBCM Power, Ground, Serial Data, Indicator, and Signal Circuits PNP Switch and VSS Engine Cooling Schematics