Engine Controls Schematics. GMC Truck Yukon

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Yukon - 4WD 🢒 Power and Signal Distribution 🢒 Data Communications 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - 5-Volt and Low Reference RUN/CRANK Bus - ECM-IGN and TRANS IGN 1 Fuses ECM-BATT, HEADLAMP WASH, HVAC BATT, IPC, LTR, S/ROOF, and TCM-BATT Fuses PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses PWR/TRN Bus - INJ-A and INJ-B Fuses PWR/TRN Bus - INJ-A and INJ-B Fuses Serial Data Communication Enable and Wake-up Circuits Serial Data Communication Enable and Wake-up Circuits G102, G104, and G108 G103, G110 and G111 HIgh Speed Bus - 1 of 2
Figure 2:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Pressure and Temperature Module Power, Ground, Serial Data, and MIL
Figure 3:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Oxygen Sensors Engine Data Sensors - 5-Volt and Low Reference Module Power, Ground, and Serial Data Module Power, Ground, Serial Data, and Stop Lamp Switch PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses G103, G110 and G111
Figure 4:	Engine Data Sensors - Oxygen Sensors Master Electrical Component List Engine Control Module Description Control Module References Engine Data Sensors - Throttle Controls Engine Data Sensors - Pressure and Temperature PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
Figure 5:	Engine Data Sensors - Throttle Controls Master Electrical Component List Throttle Actuator Control (TAC) System Description Control Module References Ignition Controls - Ignition System Coils 1, 3, 5, and 7 Engine Data Sensors - Oxygen Sensors
Figure 6:	Ignition Controls - Ignition System Coils 1, 3, 5, and 7 Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Ignition Controls - Ignition System Coils 2, 4, 6, and 8 Engine Data Sensors - Throttle Controls
Figure 7:	Ignition Controls - Ignition System Coils 2, 4, 6, and 8 Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Ignition Controls - Sensors and Active Fuel Management (AFM) Controls Ignition Controls - Ignition System Coils 1, 3, 5, and 7 PWR/TRN Bus - INJ-A and INJ-B Fuses G102, G104, and G108
Figure 8:	Ignition Controls - Sensors and Active Fuel Management (AFM) Controls Master Electrical Component List Electronic Ignition (EI) System Description Control Module References Fuel Controls - Fuel Pump Controls (LY6) Ignition Controls - Ignition System Coils 2, 4, 6, and 8 PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses
Figure 9:	Fuel Controls - Fuel Pump Controls (LY6) Master Electrical Component List Fuel System Description Control Module References Fuel Pump Flow Control Module (Except LY6) Ignition Controls - Sensors and Active Fuel Management (AFM) Controls A/C CMPRSR, FRT WASH, FUEL PUMP, HORN, and REAR DEFOG and REAR WASH Fuses G102, G104, and G108 Gages RUN/CRANK Bus - ECM-IGN and TRANS IGN 1 Fuses
Figure 10:	Fuel Pump Flow Control Module (except LY6) Master Electrical Component List Fuel System Description Control Module References Fuel Controls - Fuel Injectors Fuel Controls - Fuel Pump Controls (LY6)
Figure 11:	Fuel Controls - Fuel Injectors Master Electrical Component List Fuel System Description Control Module References Fuel Controls - EVAP Controls Fuel Pump Flow Control Module (Except LY6) PWR/TRN Bus - INJ-A and INJ-B Fuses PWR/TRN Bus - INJ-A and INJ-B Fuses
Figure 12:	Fuel Controls - EVAP Controls Master Electrical Component List Evaporative Emission Control System Description Control Module References Controlled/Monitored Subsystem References Fuel Controls - Fuel Injectors PWR/TRN Bus - ECM/THROT CONT, ENG, O2-A SNSR, and O2-B SNSR Fuses ECM-BATT, HEADLAMP WASH, HVAC BATT, IPC, LTR, S/ROOF, and TCM-BATT Fuses
Figure 13:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Control Module References Fuel Controls - EVAP Controls Engine Cooling Schematics (Except HP2) A/C Compressor Controls A/C Compressor Controls Stop Lamp Controls and CHMSL Charging Starting PNP Signals, VSS Signal, and Tow/Haul Signal Transmission Range Signals and Driver Shift Request Indicators