Engine Controls Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2004

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Controls - 6.6L (LB7) 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Fuse Block - Underhood Ignition A and B Relays Engine Controls Schematic Icons B+ Bus Bar Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses START and TRANS Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers Power and Indicators START and TRANS Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers J1939 Serial Data (L65/L18/LG4/LC8) - 2 of 2 Splice Pack SP203 (L18/LB7/LG4/LLY) G203 - 2 of 4
Figure 2:	Fuse Block - Underhood Ignition A and B Relays Master Electrical Component List Engine Control Module Description Engine Data Sensors - 5 volt and Low Reference Module Power, Ground, Serial Data, and MIL Engine Controls Schematic Icons Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars B+ Bus Bar Ignition Switch - RUN and ACC/RUN Bus Bars ENGINE and PCM-I Fuses/Circuit Breakers AXLE/4WD, BRAKE, CHASSIS, and HTR/AC Fuses/Circuit Breakers ENG 1 and ENG 4 Fuses (L18/LB7) G100 (LB7) G101 - 1 of 2
Figure 3:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Accelerator Pedal Position System Description Engine Data Sensors - Pressure and Temperature Fuse Block - Underhood Ignition A and B Relays Engine Controls Schematic Icons
Figure 4:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Accelerator Pedal Position System Description Engine Data Sensors - VSS Engine Data Sensors - 5 volt and Low Reference Engine Controls Schematic Icons Fuse Block - Underhood Ignition A and B Relays ENG 1 and ENG 4 Fuses (L18/LB7)
Figure 5:	Engine Data Sensors - VSS Master Electrical Component List Fuel System Description Engine Data Sensors - Injection Timing Controls Engine Data Sensors - Pressure and Temperature Engine Controls Schematic Icons Engine Controls Schematic Icons Ground and Gages
Figure 6:	Engine Data Sensors - Injection Timing Controls Master Electrical Component List Fuel System Description Engine Data Sensors - Glow Plug Controls Engine Data Sensors - VSS Engine Controls Schematic Icons Fuse Block - Underhood Ignition A and B Relays G118, G119, and G120 G118, G119, and G120
Figure 7:	Engine Data Sensors - Glow Plug Controls Master Electrical Component List Fuel System Description Fuel Controls - Fuel Pump Controls Engine Data Sensors - Injection Timing Controls Engine Controls Schematic Icons B+ Bus Bar Fuse Block - Underhood Ignition A and B Relays Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars ENG 1 and ENG 4 Fuses (L18/LB7) GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers
Figure 8:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Fuel System Description Fuel Controls - Water in Fuel/Temperature Sensors Engine Data Sensors - Glow Plug Controls Engine Controls Schematic Icons B+ Bus Bar G100 (LB7) G100 (LB7)
Figure 9:	Fuel Controls - Water In Fuel/Temperature Sensors Master Electrical Component List Fuel System Description Fuel Controls - Fuel Injectors Fuel Controls - Fuel Pump Controls Engine Controls Schematic Icons Fuse Block - Underhood Ignition A and B Relays B+ Bus Bar Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars ENG 1 and ENG 4 Fuses (L18/LB7) GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers Driver Information Center (DIC) G103 - 1 of 2, G105, and G106 G118, G119, and G120 G118, G119, and G120
Figure 10:	Fuel Controls - Fuel Injectors Master Electrical Component List Fuel System Description Controlled/Monitored Subsystem References Fuel Controls - Water in Fuel/Temperature Sensors Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons Engine Controls Schematic Icons J1939 Serial Data (L65/L18/LG4/LC8) - 2 of 2
Figure 11:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Fuel Controls - Fuel Injectors Engine Controls Schematic Icons A/C Compressor Controls (C60) Engine Exhaust System Starter Control (LG4/LG5) L18/LB7/LG4/LLY Backup Lamps Power Take-Off (LG4/L18/LB7) - 1 of 2 Electronic Fan Controls, Coolant Level Switch PNP Switch and Trans Opt Connector Ground and Gages