Engine Controls Schematics. Chevrolet Express 2002

For 1990-2009 cars only

Makes 🢒 Chevrolet 🢒 2002 🢒 Express 🢒 Brakes 🢒 Antilock Brake System 🢒 Engine Controls Schematics

Figure 1:	Module Power, Ground, Serial Data and MIL Master Electrical Component List Powertrain Control Module Description Engine Data Sensors: Pressure and Temperature OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center Ignition A, Ignition B Fuses, and Ignition Switch Ignition A, Ignition B Fuses, and Ignition Switch Gages Fuse ECM B, Horn, and A/C Fuses ECM 1 and Ignition E Fuses - 5.0L and 5.7L Headlamp Switch, Instrument Cluster, Park/Neutral Position Switch G101 - Gasoline Engines G101 - Gasoline Engines Data Link Connector (DLC)
Figure 2:	Engine Data Sensors: Pressure and Temperature Master Electrical Component List Powertrain Control Module Description Engine Data Sensors: MAF and VSS Module Power, Ground, Serial Data and MIL OBD II Symbol Description Notice
Figure 3:	Engine Data Sensors: MAF and VSS Master Electrical Component List Powertrain Control Module Description Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L60-E) Engine Data Sensors: Pressure and Temperature OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse - 4.3L, 5.0L, and 5.7L G101 - Gasoline Engines Gages PWR and VSS Controls Switches And VSS
Figure 4:	Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L60-E) Master Electrical Component List Powertrain Control Module Description Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L80-E) Engine Data Sensors: MAF and VSS OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse - 4.3L, 5.0L, and 5.7L G103 - 4.3L, 5.0L, and 5.7L Engines Components through S152 to G103 - Gasoline Engines
Figure 5:	Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L80-E) Master Electrical Component List Powertrain Control Module Description Ignition Controls Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L60-E) OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse - 4.3L, 5.0L, and 5.7L G103 - 4.3L, 5.0L, and 5.7L Engines Components through S152 to G103 - Gasoline Engines
Figure 6:	Ignition Controls Master Electrical Component List Powertrain Control Module Description Fuel Controls: Fuel Pump Controls Engine Data Sensors: Heated Oxygen Sensors (5.0L, 5.7L with 4L80-E) OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch ECM 1 and Ignition E Fuses - 5.0L and 5.7L G103 - 4.3L, 5.0L, and 5.7L Engines
Figure 7:	Fuel Controls: Fuel Pump Controls Master Electrical Component List Powertrain Control Module Description Fuel Controls: Fuel Injectors Ignition Controls OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center ECM B, Horn, and A/C Fuses Gages G103 - 4.3L, 5.0L, and 5.7L Engines G101 - Gasoline Engines Gages
Figure 8:	Fuel Controls: Fuel Injectors Master Electrical Component List Powertrain Control Module Description Fuel Controls: EVAP Controls Fuel Controls: Fuel Pump Controls OBD II Symbol Description Notice ECM 1 and Ignition E Fuses - 5.0L and 5.7L Ignition A, Ignition B Fuses, and Ignition Switch ECM 1 and Ignition E Fuses - 5.0L and 5.7L
Figure 9:	Fuel Controls: EVAP Controls Master Electrical Component List Powertrain Control Module Description Device Controls Fuel Controls: Fuel Injectors OBD II Symbol Description Notice Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse - 4.3L, 5.0L, and 5.7L Gages
Figure 10:	Device Controls Master Electrical Component List Powertrain Control Module Description Controlled/Monitored Subsystem References Fuel Controls: EVAP Controls OBD II Symbol Description Notice Battery, Auxiliary Battery, and Underhood Fuse/Relay Center Ignition A, Ignition B Fuses, and Ignition Switch Engine 1 Fuse - 4.3L, 5.0L, and 5.7L G103 - 4.3L, 5.0L, and 5.7L Engines Components through S152 to G103 - Gasoline Engines
Figure 11:	Controlled/Monitored Subsystem References Master Electrical Component List Powertrain Control Module Description Automatic Transmission Control References 4L60-E Device Controls OBD II Symbol Description Notice Charging System: Gasoline Engines Wheel Speed Sensors, VSS and Brake Pressure Switch A/C Fuses, ECM-B, IGN-E, Compressor Clutch, A/C Compressor Low Pressure Cutout Switch, G101, G103 (Gasoline Engines)
Figure 12:	Automatic Transmission Control References 4L60-E Master Electrical Component List Powertrain Control Module Description Automatic Transmission Control References 4L80-E Controlled/Monitored Subsystem References OBD II Symbol Description Notice PWR and Solenoids Switches And VSS
Figure 13:	Automatic Transmission Control References 4L80-E Master Electrical Component List Powertrain Control Module Description Automatic Transmission Control References 4L60-E OBD II Symbol Description Notice Solenoid and TCC/Brake Switch Controls Sensor, Solenoid and GND Controls