Engine Controls Schematics. GMC Truck Yukon XL

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2001 🢒 Yukon XL - 4WD 🢒 Driveline/Axle 🢒 Transfer Case - NVG 236/246-NP8 (Two Speed Automatic) 🢒 Engine Controls Schematics

Figure 1:	Power and Ground Master Electrical Component List Engine Control Module Description MIL Control and Serial Data OBD II Symbol Description Notice B+ Bus Bar IGNITION, RUN, and START Bus Bar IGN 1 Relay, ECM I, FUEL HT, ENG 1, IGN E, ECMRPV, and INJ B Fuses - Diesel AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses RTD, RDO AMP, CRANK, and IGN 0 Fuses RTD, RDO AMP, CRANK, and IGN 0 Fuses G105 - Diesel
Figure 2:	MIL Control and Serial Data Master Electrical Component List Engine Control Module Description Engine Data Sensors - Pressure and Temperature Power and Ground OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar SP205 IGN 1, AIR BAG, and SEO IGN Fuses Power and Ground Park/Neutral Position (PNP) Switch and TCM Park/Neutral Position (PNP) Switch and TCM
Figure 3:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Engine Control Module Description Engine Data Sensors - EGR and Vacuum - California Emissions Only MIL Control and Serial Data OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar Engine Data Sensors - EGR and Vacuum - California Emissions Only Engine Data Sensors - EGR and Vacuum - California Emissions Only
Figure 4:	Engine Data Sensors - EGR and Vacuum - California Emissions Only Master Electrical Component List Engine Control Module Description Engine Data Sensors - Pedal Position Engine Data Sensors - Pressure and Temperature OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar Engine Data Sensors - Pressure and Temperature IGN 1 Relay, ECM I, FUEL HT, ENG 1, IGN E, ECMRPV, and INJ B Fuses - Diesel IGN 1 Relay, ECM I, FUEL HT, ENG 1, IGN E, ECMRPV, and INJ B Fuses - Diesel
Figure 5:	Engine Data Sensors - Pedal Position Master Electrical Component List Engine Control Module Description Engine Data Sensors - VSS and Injection Timing Controls Engine Data Sensors - EGR and Vacuum - California Emissions Only OBD II Symbol Description Notice
Figure 6:	Engine Data Sensors - VSS and Injection Timing Controls Master Electrical Component List Engine Control Module Description Engine Data Sensors - Glow Plug Controls - All Except California Emissions Engine Data Sensors - Pedal Position OBD II Symbol Description Notice Gauges, VSS, and Engine Oil Signals Gauges, VSS, and Engine Oil Signals Vehicle Speed Signal and 4WD Low Signal G106 - Diesel
Figure 7:	Engine Data Sensors - Glow Plug Controls - All Except California Emissions Master Electrical Component List Engine Control Module Description Engine Data Sensors - Glow Plug Controls - w/California Emissions Only Engine Data Sensors - VSS and Injection Timing Controls OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar IGNITION, RUN, and START Bus Bar IGNITION, RUN, and START Bus Bar IGN 1, AIR BAG, and SEO IGN Fuses Indicators and Illumination Lamps G102, G103, and G104 - Diesel
Figure 8:	Engine Data Sensors - Glow Plug Controls - w/California Emissions Only Master Electrical Component List Engine Control Module Description Fuel Controls - Fuel Pump Controls Engine Data Sensors - Glow Plug Controls - All Except California Emissions OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar IGNITION, RUN, and START Bus Bar IGNITION, RUN, and START Bus Bar IGN 1, AIR BAG, and SEO IGN Fuses Indicators and Serial Data
Figure 9:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Engine Control Module Description Fuel Controls - Water In Fuel, Fuel Temperature, and Fuel Pressure Engine Data Sensors - Glow Plug Controls - w/California Emissions Only OBD II Symbol Description Notice B+ Bus Bar G106 - Diesel G106 - Diesel AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses Fuel Gauge and Fuel Pump and Sender Assembly G106 - Diesel G100 and G110 G403
Figure 10:	Fuel Controls - Water In Fuel, Fuel Temperature, and Fuel Pressure Master Electrical Component List Engine Control Module Description Fuel Controls - Injector and Pressure Controls Fuel Controls - Fuel Pump Controls OBD II Symbol Description Notice IGNITION, RUN, and START Bus Bar AIR, RADIO, ECM B, FRT HVAC, and CIGAR Fuses IGN 1 Relay, ECM I, FUEL HT, ENG 1, IGN E, ECMRPV, and INJ B Fuses - Diesel SP205 G102, G103, and G104 - Diesel G102, G103, and G104 - Diesel
Figure 11:	Fuel Controls - Injector and Pressure Controls Master Electrical Component List Engine Control Module Description Fuel Controls - Fuel Injectors Fuel Controls - Water In Fuel, Fuel Temperature, and Fuel Pressure OBD II Symbol Description Notice IGN 1 Relay, ECM I, FUEL HT, ENG 1, IGN E, ECMRPV, and INJ B Fuses - Diesel G102, G103, and G104 - Diesel G102, G103, and G104 - Diesel
Figure 12:	Fuel Controls - Fuel Injectors Master Electrical Component List Engine Control Module Description Controlled/Monitored Subsystem References Fuel Controls - Injector and Pressure Controls OBD II Symbol Description Notice
Figure 13:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Transmission Controls - A/T Fuel Controls - Fuel Injectors OBD II Symbol Description Notice A/C Compressor Controls A/C Compressor Controls Primary Air Delivery Controls - Recirculation Actuator (Uplevel Pickup and All Utilities) Cruise Control Module (CCM) and Cruise Control On/Off Switch Backup Lamps Schematics - Pickup Charging - Diesel Dual Generator Charging - Diesel Dual Generator 4WD and ATC Fuse, Transfer Case Encoder Motor Power, Ground, Serial Data - w/o Traction Assist Power, Ground, Serial Data - w/o Traction Assist Gauges, VSS, and Engine Oil Signals Engine Cooling Schematics
Figure 14:	Transmission Controls - A/T Master Electrical Component List Engine Control Module Description Controlled/Monitored Subsystem References OBD II Symbol Description Notice Park/Neutral Position (PNP) Switch and TCM Power, Ground, and Stop Lamp Switch TCC Signal Circuit Park/Neutral Position (PNP) Switch and TCM Park/Neutral Position (PNP) Switch and TCM
Figure 15:	Power Take-Off