Engine Controls Schematics. Chevrolet Chevy K Silverado

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Chevy K Silverado - 4WD 🢒 Body and Accessories 🢒 Wiring Systems 🢒 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 (Diesel) - 2 of 3 ECM, ECMRPV, EDU, EDU Relay - Diesel Only IGN 1 Relay Bus, SEO 2, RR DEFOG, SEO IGN, B/U LP ECM, ECMRPV, EDU, EDU Relay - Diesel Only IGN 0 , TBC IGN 0, TBC ACCY, SEO ACCY, W/S WIPER, RR WIPER IGN 0 , TBC IGN 0, TBC ACCY, SEO ACCY, W/S WIPER, RR WIPER FUEL HT and ECM I Fuses - Diesel Only G102, G103-Gas
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 SP205 - 2 of 2 B+ Bus Bar (Gas) - 1 of 3 RTD/ECAS, RR WPR, EAP, SUNROOF, IPC/DIC, SEO 1 Power, Ground, Serial Data CAN Serial Data, VSS, and PNP Switch CAN Serial Data, VSS, and PNP Switch
Figure 3:	Engine Data Sensors - Pressure and Temperature Master Electrical Component List Engine Control Module Description Engine Data Sensors - EGR and Vacuum MIL Control and Serial Data OBD II Symbol Description Notice IGN 1 Relay Bus, SEO 2, RR DEFOG, SEO IGN, B/U LP SBA, ETC, PCM 1, BTSI, TRL B/U Engine Data Sensors - EGR and Vacuum Engine Data Sensors - EGR and Vacuum
Figure 4:	Engine Data Sensors - EGR and Vacuum 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, Start, Accy Bus Bar Engine Data Sensors - Pressure and Temperature Engine Data Sensors - Pressure and Temperature FUEL HT and ECM I Fuses - Diesel Only FUEL HT and ECM I Fuses - Diesel Only
Figure 5:	Engine Data Sensors - Pedal Position Master Electrical Component List Engine Control Module Description VSS and Injection Timing Controls Engine Data Sensors - EGR and Vacuum OBD II Symbol Description Notice
Figure 6:	Engine Data Sensors - VSS and Injection Timing Controls Master Electrical Component List Engine Control Module Description Data Sensors - Glow Plug Controls - Except California Emissions Engine Data Sensors - Pedal Position OBD II Symbol Description Notice Gauges, VSS, Engine Oil Signals-Diesel Only Gauges, VSS, Engine Oil Signals-Diesel Only CAN Serial Data, VSS, and PNP Switch Manual Transmission Schematics G104, G106, G107
Figure 7:	Engine Data Sensors - Glow Plug Controls - Except California Emissions Master Electrical Component List Engine Control Module Description Engine Data Sensors - Glow Plug Controls - California Emissions VSS and Injection Timing Controls OBD II Symbol Description Notice Ignition, Run, Start, Accy Bus Bar FUEL HT and ECM I Fuses - Diesel Only Ignition, Run, Start, Accy Bus Bar Ignition, Run, Start, Accy Bus Bar Indicators, DIC Controls, Washer Fluid Level Sensor G104, G106, G107
Figure 8:	Engine Data Sensors - Glow Plug Controls - California Emissions Master Electrical Component List Engine Control Module Description Fuel Controls - Fuel Pump Controls Data Sensors - Glow Plug Controls - Except California Emissions OBD II Symbol Description Notice Ignition, Run, Start, Accy Bus Bar Ignition, Run, Start, Accy Bus Bar FUEL HT and ECM I Fuses - Diesel Only B+ Bus Bar (Gas) - 1 of 3 Ignition, Run, Start, Accy Bus Bar Indicators, DIC Controls, Washer Fluid Level Sensor
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 Sensors Engine Data Sensors - Glow Plug Controls - California Emissions OBD II Symbol Description Notice B+ Bus Bar (Diesel) - 2 of 3 G102, G103, G108, and G109 - Diesel G102, G103, G108, and G109 - Diesel Fuel Gauge-Gas Only G102, G103, G108, and G109 - Diesel G110 ECM, ECMRPV, EDU, EDU Relay - Diesel Only G403
Figure 10:	Fuel Controls - Water in Fuel, Fuel Temperature, and Fuel Pressure Sensors Master Electrical Component List Engine Control Module Description Fuel Controls - Injector and Pressure Controls Fuel Controls - Fuel Pump Controls OBD II Symbol Description Notice QS4, RADIO, RDO AMP Ignition, Run, Start, Accy Bus Bar FUEL HT and ECM I Fuses - Diesel Only G102, G103-Gas SP205 - 2 of 2 G102, G103-Gas
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 Sensors OBD II Symbol Description Notice Ignition, Run, Start, Accy Bus Bar
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 A/C Compressor Controls A/C Compressor Controls Backup Lamps - Chevrolet Charging System-Diesel Charging System-Diesel Transfer Case Schematics - NP1 Power, Ground, and Transfer Case Encoder Motor Over 8600 GVW - 2 of 2 Over 8600 GVW - 2 of 2 Gauges, VSS, Engine Oil Signals-Diesel Only Engine Cooling
Figure 14:	Transmission Controls - A/T Master Electrical Component List Engine Control Module Description Controlled/Monitored Subsystem References OBD II Symbol Description Notice CAN Serial Data, VSS, and PNP Switch CAN Serial Data, VSS, and PNP Switch CAN Serial Data, VSS, and PNP Switch Serial Data, Tow/Haul Switch, and Torque Signals