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 Mechanical - 8.1L 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - 5 Volt and Low Reference Engine Controls Schematic Icons Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars START and TRANS Fuses/Circuit Breakers GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers START and TRANS Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers START and TRANS Fuses/Circuit Breakers A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses GAUGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers Power and Indicators J1939 Serial Data (L65/L18/LG4/LC8) - 2 of 2 G203 - 2 of 4 G100 (L18)
Figure 2:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Powertrain Control Module Description Fuse Block Underhood Ignition A Relay Module Power, Ground, Serial Data, and MIL Engine Controls Schematic Icons
Figure 3:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Throttle Actuator Control (TAC) System Description Engine Data Sensors - VSS Engine Data Sensors - 5 Volt and Low Reference Engine Controls Schematic Icons B+ Bus Bar Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars ENGINE and PCM-I Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers ENGINE and PCM-I Fuses/Circuit Breakers ENG 1 and ENG 4 Fuses (L18/LB7) ENG 1 and ENG 4 Fuses (L18/LB7) G203 - 2 of 4
Figure 4:	Engine Data Sensors - VSS Master Electrical Component List Throttle Actuator Control (TAC) System Description Engine Data Sensors - Oxygen Sensors Fuse Block Underhood Ignition A Relay Engine Controls Schematic Icons Module Power, Ground, Serial Data, MIL, VSS, and Torque Ground and Gages Engine Controls Schematic Icons Engine Controls Schematic Icons
Figure 5:	Engine Data Sensors - Oxygen Sensors Master Electrical Component List Throttle Actuator Control (TAC) System Description Engine Data Sensors - Electronic Throttle Controls Engine Data Sensors - VSS Engine Controls Schematic Icons ENG 2 and ENG 3 Fuses (L18) Ignition Switch - RUN and ACC/RUN Bus Bars AXLE/4WD, BRAKE, CHASSIS, and HTR/AC Fuses/Circuit Breakers G101 - 1 of 2
Figure 6:	Engine Data Sensors - Electronic Throttle Controls Master Electrical Component List Throttle Actuator Control (TAC) System Description Ignition Controls - Ignition Systems - 1 of 2 Engine Data Sensors - 5 volt and Low Reference Engine Controls Schematic Icons Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars ENGINE and PCM-I Fuses/Circuit Breakers BRAKE ISO Fuse/Circuit Breaker L18/LB7/LG4/LLY G200, G202, and G203 - 1 of 4
Figure 7:	Ignition Controls - Ignition System - 1 of 2 Master Electrical Component List Fuel System Description Ignition Controls - Ignition Systems - 2 of 2 Engine Data Sensors - Electronic Throttle Controls Engine Controls Schematic Icons Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars B+ Bus Bar ENGINE and PCM-I Fuses/Circuit Breakers Ignition Controls - Ignition Systems - 2 of 2 G100 (L18) G100 (L18) G100 (L18) Ignition Controls - Ignition Systems - 2 of 2
Figure 8:	Ignition Controls - Ignition System - 2 of 2 Master Electrical Component List Fuel System Description Ignition Systems - CMP and CKP Sensors Ignition Controls - Ignition Systems - 1 of 2 Engine Controls Schematic Icons Ignition Controls - Ignition Systems - 1 of 2 Ignition Controls - Ignition Systems - 1 of 2
Figure 9:	Ignition Systems - CMP and CKP Sensors Master Electrical Component List Electronic Ignition (EI) System Description Fuel Controls - Fuel Pump Controls Ignition Controls - Ignition Systems - 2 of 2 Engine Controls Schematic Icons
Figure 10:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Electronic Ignition (EI) System Description Fuel Controls - Fuel Injectors Ignition Systems - CMP and CKP Sensors Engine Controls Schematic Icons B+ Bus Bar G200, G202, and G203 - 1 of 4 G200, G202, and G203 - 1 of 4
Figure 11:	Fuel Controls - Fuel Injectors Master Electrical Component List Electronic Ignition (EI) System Description Device Controls - EGR Valve and Solenoid Fuel Controls - Fuel Pump Controls Engine Controls Schematic Icons Ignition Switch - OFF/RUN/START, RUN/START and START Bus Bars B+ Bus Bar ENGINE and PCM-I Fuses/Circuit Breakers G100 (L18)
Figure 12:	Device Controls - EGR Valve and Solenoid Master Electrical Component List Powertrain Control Module Description Controlled/Monitored Subsystem References - 1 of 2 Fuel Controls - Fuel Injectors Engine Controls Schematic Icons Underhood Fuse Block, ENG 4 and ENG 1 Fuses (L18/LB7) Underhood Fuse Block, ENG 4 and ENG 1 Fuses (L18/LB7) Instrument Panel Cluster - 2 of 2 Blower Controls (C60) Starter and Charging System (LG4/LG5)
Figure 13:	Controlled/Monitored Subsystem References - 1 of 2 Master Electrical Component List Knock Sensor (KS) System Description Controlled/Monitored Subsystem References - 2 of 2 Device Controls - EGR Valve and Solenoid Engine Controls Schematic Icons Ground and Gages Electronic Fan Controls, Coolant Level Switch Starter and Charging System (LG4/LG5) Module Power, Ground, Serial Data, MIL, VSS, and Torque L18/LB7/LG4/LLY
Figure 14:	Controlled/Monitored Subsystem References - 2 of 2 Master Electrical Component List Knock Sensor (KS) System Description Controlled/Monitored Subsystem References - 1 of 2 Engine Controls Schematic Icons Power Take-Off (LG4/L18/LB7) - 1 of 2 Module Power, Ground, Serial Data, MIL, VSS, and Torque