Engine Controls Schematics. Chevrolet Avalanche

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2003 🢒 Avalanche - 4WD 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors -Pressure, Temperature, and VSS Engine Controls Schematic Icons IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, WS WIPER, RR WIPER IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, WS WIPER, RR WIPER IGN 0, TBC IGN 0, TBC ACCY, SEO ACCY, WS WIPER, RR WIPER IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP SBA, ETC/ECM, PCM 1, BTSI, TRL B/U SBA, ETC/ECM, PCM 1, BTSI, TRL B/U B+ Bus Bar - 1 of 2 LH HID, RT HID, PCM B, CRANK, HORN, SIR RTD, RR WPR, EAP, SUNROOF, IPC/DIC, SEO B1 Indicators, DIC Controls, Washer Fluid Level Sensor G102, G103 SP205 - 2 of 2
Figure 2:	Engine Data Sensors - Pressure, Temperature, and VSS Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - HO2S Module Power, Ground, Serial Data and MIL Engine Controls Schematic Icons Gauges, VSS, Engine Oil Signals Vehicle Speed Signal and 4WD Low Signal Vehicle Speed Signal and 4WD Low Signal IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP SBA, ETC/ECM, PCM 1, BTSI, TRL B/U SBA, ETC/ECM, PCM 1, BTSI, TRL B/U G102, G103
Figure 3:	Engine Data Sensors - HO2S Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Electronic Throttle Controls - 1 of 2 Engine Data Sensors -Pressure, Temperature, and VSS Engine Controls Schematic Icons Ignition, Run, Start, Accy Bus Bar G102, G103
Figure 4:	Engine Data Sensors - (Electronic Throttle Controls - 1 of 2) Master Electrical Component List Powertrain Control Module Description Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Engine Data Sensors - HO2S Engine Controls Schematic Icons IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP G104, G107
Figure 5:	Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Ignition System Coils 1, 3, 5, and 7 Engine Data Sensors - Electronic Throttle Controls - 1 of 2 Engine Controls Schematic Icons Power, Cruise Control Switch, and Stop Lamp Feed
Figure 6:	Ignition Controls - Ignition System Coils 1, 3, 5, and 7 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Ignition System Coils 2, 4, 6, and 8 Engine Data Sensors - Electronic Throttle Controls - 2 of 2 Engine Controls Schematic Icons IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP INJ 1, INJ 2 G102, G103
Figure 7:	Ignition Controls - Ignition System Coils 2, 4, 6, and 8 Master Electrical Component List Powertrain Control Module Description Ignition Controls - Sensors Ignition Controls - Ignition System Coils 1, 3, 5, and 7 Engine Controls Schematic Icons IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP INJ 1, INJ 2 G104, G107
Figure 8:	Ignition Controls - Sensors Master Electrical Component List Powertrain Control Module Description Fuel Controls - Fuel Pump Controls Ignition Controls - Ignition System Coils 2, 4, 6, and 8 Engine Controls Schematic Icons Gauges, VSS, Engine Oil Signals
Figure 9:	Fuel Controls - Fuel Pump Controls Master Electrical Component List Powertrain Control Module Description Fuel Controls - Fuel Injectors Ignition Controls - Sensors Engine Controls Schematic Icons B+ Bus Bar - 1 of 2 LH HID, RT HID, PCM B, CRANK, HORN, SIR G104, G107 IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP SBA, ETC/ECM, PCM 1, BTSI, TRL B/U G104, G107 Fuel Gauge
Figure 10:	Fuel Controls - Fuel Injectors Master Electrical Component List Powertrain Control Module Description Fuel Controls - EVAP Controls, Fuel Tank Pressure, and Fuel Composition Fuel Controls - Fuel Pump Controls Engine Controls Schematic Icons IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP INJ 1, INJ 2
Figure 11:	Fuel Controls - EVAP Controls, Fuel Tank Pressure, and Fuel Composition Master Electrical Component List Powertrain Control Module Description Controlled/Monitored Subsystem References Fuel Controls - Fuel Injectors Engine Controls Schematic Icons IGN 1 Relay Bus, SEO B2, RR DEFOG, SEO IGN, B/U LP SBA, ETC/ECM, PCM 1, BTSI, TRL B/U B+ Bus Bar - 1 of 2 RADIO, RADIO AMP, 4WS Fuel Gauge G104, G107
Figure 12:	Controlled/Monitored Subsystem References Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T Fuel Controls - EVAP Controls, Fuel Tank Pressure, and Fuel Composition Engine Controls Schematic Icons A/C Compressor Controls A/C Compressor Controls Gauges, VSS, Engine Oil Signals Power, Ground and DLC Power, Ground, Class 2, and Wheel Speed Sensors Charging System Power, Ground and Transfer Case Encoder Motor Power, Ground and Encoder Motor Stoplamp Switch and Traction Control Switch Gauges, VSS, Engine Oil Signals Engine Cooling
Figure 13:	Transmission Controls - A/T - 4L60-E Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T - 4L80-E Controlled/Monitored Subsystem References Engine Controls Schematic Icons Valve Controls and Brake Switch Switch Inputs Switch Inputs Tow/Haul Switch and PNP Switch Inputs
Figure 14:	Transmission Controls - A/T - 4L80-E Master Electrical Component List Powertrain Control Module Description Transmission Controls - A/T Engine Controls Schematic Icons Switch Inputs Switch Inputs Tow/Haul Switch and PNP Switch Inputs Switch Inputs Switch Inputs Valve Controls and Brake Switch