Engine Controls Schematics. Generic Unit Repair 2003

For 1990-2009 cars only

Makes 🢒 Generic 🢒 2003 🢒 Unit Repair 🢒 Engine 🢒 Engine Controls - 4.8L, 5.3L, and 6.0L 🢒 Engine Controls Schematics

Figure 1:	PCM Power, Grounding, Serial Data, and MIL Master Electrical Component List Powertrain Control Module Description 5 Volt and Low Reference Busses OBD II Symbol Description Notice G104 and G106 ETC, PCM, INJ 1, and INJ 2 Fuses ETC, PCM, INJ 1, and INJ 2 Fuses B+ Bus PCMB, TREC, IPC/DIC, TBC BATT, SEO B1, SEO B2, and HVAC/ECAS Fuses WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses WS WPR, SEO ACCY, RR WPR, and TBC ACCY Fuses Power, Ground, DLC, and Splice Pack SP205 G102 and G103 G102 and G103 G102 and G103 G104 and G106
Figure 2:	5 Volt and Low Reference Busses Master Electrical Component List Powertrain Control Module Description MAP, ECT, VSS Circuit, and IAT/MAF PCM Power, Grounding, Serial Data, and MIL OBD II Symbol Description Notice
Figure 3:	MAP, ECT, VSS Circuits, and IAT/MAF Master Electrical Component List Powertrain Control Module Description HO2S Circuits 5 Volt and Low Reference Busses OBD II Symbol Description Notice Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor ETC, PCM, INJ 1, and INJ 2 Fuses G102 and G103 G102 and G103 Power, Grounding, DLC, Sensors, and Gauges
Figure 4:	HO2S Circuits Master Electrical Component List Powertrain Control Module Description TAC Power, Grounding, Data Circuits, and Indicator Control MAP, ECT, VSS Circuit, and IAT/MAF OBD II Symbol Description Notice B/U LP, O2A, O2B, TBC IGN1, TRL B/U, and BTSI Fuses G102 and G103
Figure 5:	TAC Power, Grounding, Data Circuits, and Indicator Control Master Electrical Component List Throttle Actuator Control (TAC) System Description Accelerator Pedal Position Sensor and Throttle Control Circuits HO2S Circuits OBD II Symbol Description Notice ETC, PCM, INJ 1, and INJ 2 Fuses ETC, PCM, INJ 1, and INJ 2 Fuses Stop Lamps Power, Ground, DLC, and Splice Pack SP205 G104 and G106
Figure 6:	Accelerator Pedal Position Sensor and Throttle Control Circuits Master Electrical Component List Throttle Actuator Control (TAC) System Description Ignition Control, Bank 1 TAC Power, Grounding, Data Circuits, and Indicator Control OBD II Symbol Description Notice
Figure 7:	Ignition Control, Bank 1 Master Electrical Component List Electronic Ignition (EI) System Description Ignition Control, Bank 2 Accelerator Pedal Position Sensor and Throttle Control Circuits OBD II Symbol Description Notice ETC, PCM, INJ 1, and INJ 2 Fuses G104 and G106
Figure 8:	Ignition Control, Bank 2 Master Electrical Component List Electronic Ignition (EI) System Description CMP, CKP, KS, and Engine Speed Output Ignition Control, Bank 1 OBD II Symbol Description Notice G104 and G106 ETC, PCM, INJ 1, and INJ 2 Fuses
Figure 9:	CMP, CKP, KS, and Engine Speed Output Master Electrical Component List Knock Sensor (KS) System Description Fuel Pump Controls Ignition Control, Bank 2 OBD II Symbol Description Notice
Figure 10:	Fuel Pump Controls Master Electrical Component List Fuel System Description Without Returnless Fuel System Fuel Injector Controls CMP, CKP, KS, and Engine Speed Output OBD II Symbol Description Notice PCMB, TREC, IPC/DIC, TBC BATT, SEO B1, SEO B2, and HVAC/ECAS Fuses G104 and G106 G308, G310, G401, and G300
Figure 11:	Fuel Injector Controls Master Electrical Component List Fuel System Description Without Returnless Fuel System EVAP and Fuel Tank Pressure Sensor Fuel Pump Controls OBD II Symbol Description Notice ETC, PCM, INJ 1, and INJ 2 Fuses ETC, PCM, INJ 1, and INJ 2 Fuses
Figure 12:	EVAP and Fuel Tank Pressure Sensor Master Electrical Component List Evaporative Emission Control System Description HVAC and Cruise Control Circuits Fuel Injector Controls OBD II Symbol Description Notice G104 and G106 G104 and G106 ETC, PCM, INJ 1, and INJ 2 Fuses ETC, PCM, INJ 1, and INJ 2 Fuses B+ Bus Power, Grounding, DLC, Sensors, and Gauges
Figure 13:	HVAC and Cruise Control Circuits Master Electrical Component List Throttle Actuator Control (TAC) System Description Starter, Generator, Oil Level and Pressure, and 4WD Circuits EVAP and Fuel Tank Pressure Sensor OBD II Symbol Description Notice Air Conditioning Compressor Control Air Conditioning Compressor Control Stop Lamps Cruise Control Schematics
Figure 14:	Starter, Generator, Oil Level and Pressure, and 4WD Circuits Master Electrical Component List Powertrain Control Module Description Automatic Transmission Circuits HVAC and Cruise Control Circuits OBD II Symbol Description Notice Starting Power, Grounding, DLC, Sensors, and Gauges Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor Charging Engine Cooling Schematics Displays and Personalization Controls
Figure 15:	Automatic Transmission Circuits Master Electrical Component List Powertrain Control Module Description Starter, Generator, Oil Level and Pressure, and 4WD Circuits OBD II Symbol Description Notice Power, BCM, PCM, Class 2, Stop Lamp Switch, Tow-Haul Switch, and Shift Solenoids Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor Fluid Pressure Switch, TFT Sensor, PC Solenoid Valve, Transfer Case Control Module, and Vehicle Speed Sensor Transmission Range Display