Engine Controls Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2005

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2005 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data, and MIL Master Electrical Component List Engine Control Module Description Fuseblocks - Underhood Ignition A and B Relays Engine Controls Schematic Icons Fuseblocks - Underhood Ignition A and B Relays B+ Bus Ignition Switch - OFF/RUN/START, RUN/START and START Busses Ignition Switch - OFF/RUN/START, RUN/START and START Busses A/C COMP, HTD FUEL, PCM-B, and RR DEFOG Fuses START and TRANS Fuses/Circuit Breaker ENGINE and PCM-1 Fuses/Circuit Breakers GAGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers Instrument Panel Cluster - 1 of 2 START and TRANS Fuses/Circuit Breaker ENGINE and PCM-1 Fuses/Circuit Breakers J1939 Serial Data - LLY Splice Pack SP203 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 Busses B+ Bus Ignition Switch - RUN and ACC/RUN Busses ENGINE and PCM-1 Fuses/Circuit Breakers AXLE/4WD, BRAKE, CHASSIS, and HTR/AC Fuses/Circuit Breakers G101 - 1 of 2 ENG-1 and ENG-4 Fuses - L18/LLY G100 - LLY G101 - 1 of 2
Figure 3:	Engine Data Sensors - 5-Volt and Low Reference Master Electrical Component List Engine Control Module Description Engine Data Sensors - Pressure and Temperature Fuseblocks - 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 - EGR and Turgocharger Engine Data Sensors - 5-Volt and Low Reference Engine Controls Schematic Icons Fuseblocks - Underhood Ignition A and B Relays ENG-1 and ENG-4 Fuses - L18/LLY
Figure 5:	Engine Data Sensors - Turbocharger and EGR Master Electrical Component List Turbocharger System Description Engine Data Sensors - VSS and Ignition Timing Controls Engine Data Sensors - Pressure and Temperature Engine Controls Schematic Icons
Figure 6:	Engine Data Sensors - VSS and Ignition Timing Controls Master Electrical Component List Engine Control Module Description Engine Date Sensors - Injection Timing Controls Engine Data Sensors - EGR and Turgocharger Engine Controls Schematic Icons Manual Transmission Schematics Manual Transmission Schematics Module Power, Ground, Serial Data, and MIL, VSS, and Torque Instrument Panel Cluster - 2 of 2 G118, G119, and G120 G118, G119, and G120
Figure 7:	Engine Data Sensors - Injection Timing Controls Master Electrical Component List Fuel System Description Engine Data Sensors - Glow Plug Controls Engine Data Sensors - VSS and Ignition Timing Controls Engine Controls Schematic Icons Fuseblocks - Underhood Ignition A and B Relays G118, G119, and G120 G118, G119, and G120
Figure 8:	Engine Data Sensors - Glow Plug Controls Master Electrical Component List Glow Plug System Description Fuel Controls - Fuel Pump Controls Engine Date Sensors - Injection Timing Controls Engine Controls Schematic Icons Fuseblocks - Underhood Ignition A and B Relays ENG-1 and ENG-4 Fuses - L18/LLY B+ Bus J1939 Serial Data - LLY G118, G119, and G120
Figure 9:	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 FUEL Fuse/Circuit Breaker - L18/LLY, PCV Circuit Breaker - LG4, and ECM-B Circuit Breaker - LG5 G100 - LLY G112, G113, G203 - 4 of 4, G204, G205, and G400
Figure 10:	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 Fuseblocks - Underhood Ignition A and B Relays B+ Bus Ignition Switch - OFF/RUN/START, RUN/START and START Busses ENG-1 and ENG-4 Fuses - L18/LLY GAGES, L-RR TRUCK, R-RR TRUCK, and SIR Fuses/Circuit Breakers DIC G103 - 1 of 2, G105, and G106 G118, G119, and G120 G118, G119, and G120
Figure 11:	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 J1939 Serial Data - LLY
Figure 12:	Controlled/Monitored Subsystem References Master Electrical Component List Engine Control Module Description Fuel Controls - Fuel Injectors Engine Controls Schematic Icons Blower Controls (C60) Engine Exhaust Brake Schematics Starting System (L18/LLY) Charging System (L18/LLY) Cruise Control Schematics Backup Lamps and Backup Alarm - UZF C305 - Upfitter Lighting Connector Stop Lamp Switch 1 of 2 Engine Cooling Schematics PNP Switch and Cxxx (TRANS OPT Connector) Stop Lamp Switch Traction Control and Brake Lamp Switch Instrument Panel Cluster - 2 of 2 Power, Ground, Class 2 Serial Data, Transfer Case Shift Control Module and Transfer Case Encoder Motor