Engine Controls Schematics. Pontiac Grand Prix 2003

For 1990-2009 cars only

Makes 🢒 Pontiac 🢒 2003 🢒 Grand Prix 🢒 Engine 🢒 Engine Controls - 3.8L 🢒 Engine Controls Schematics

Figure 1:	PCM Power, Ground, MIL, and Serial Data Master Electrical Component List Powertrain Control Module Description 5 Volt and Low Reference Bussing OBD II Symbol Description Notice AIR, ECM SENSE, ALT SENSE, and B/U Lamp Fuses IP-IGN, CRUISE, and ECM Fuses IP-IGN, CRUISE, and ECM Fuses IP-IGN, CRUISE, and ECM Fuses Indicators IP-IGN, CRUISE, and ECM Fuses DLC G100, G111, G113
Figure 2:	5 Volt and Low Reference Bussing Master Electrical Component List Powertrain Control Module Description MAP, ECT, IAT, and TP Sensor PCM, Power, Ground, MIL, and Serial Data OBD II Symbol Description Notice
Figure 3:	MAP, ECT, IAT, and TP Sensors Master Electrical Component List Powertrain Control Module Description MAF, A/T Controls, and VSS Reference 5 Volt and Low Reference Bussing OBD II Symbol Description Notice
Figure 4:	MAF Sensor and A/T Controls VSS Reference Master Electrical Component List Powertrain Control Module Description Heated Oxygen Sensors MAP, ECT, IAT, and TP Sensor OBD II Symbol Description Notice BATT MAIN 1, 2 IGN MAIN 1, 2 HEADLAMPS, PARK LP, HVAC/RKE BATT, AIR, ECM SENSE, ALT SENSE, B/U LAMP, COOL FAN 1, 2 FUEL PUMP, FOG LP, HORN, INJ, IGN1-UH, ELEK IGN, TCC, A/C CLU/ABS IGN Fuses IGN 1-UH Fuse IGN 1-UH Fuse VSS, and ISS Sensors, Pressure Control Solenoid Valve, TCC Release Switch and Fluid Pressure Switches, FP Gages OBD II Symbol Description Notice G100, G111, G113 G100, G111, G113
Figure 5:	Heated Oxygen Sensors Master Electrical Component List Powertrain Control Module Description Ignition Control Module MAF, A/T Controls, and VSS Reference OBD II Symbol Description Notice BATT MAIN 1, 2 IGN MAIN 1, 2 HEADLAMPS, PARK LP, HVAC/RKE BATT, AIR, ECM SENSE, ALT SENSE, B/U LAMP, COOL FAN 1, 2 FUEL PUMP, FOG LP, HORN, INJ, IGN1-UH, ELEK IGN, TCC, A/C CLU/ABS IGN Fuses IGN 1-UH Fuse G117
Figure 6:	Fuel Pump Controls Master Electrical Component List Fuel System Description Fuel Injectors Ignition Control Module OBD II Symbol Description Notice BATT MAIN 1, 2 IGN MAIN 1, 2 HEADLAMPS, PARK LP, HVAC/RKE BATT, AIR, ECM SENSE, ALT SENSE, B/U LAMP, COOL FAN 1, 2 FUEL PUMP, FOG LP, HORN, INJ, IGN1-UH, ELEK IGN, TCC, A/C CLU/ABS IGN Fuses G100, G111, G113 Gages G100, G111, G113 G302, S402, S406, S416
Figure 7:	Fuel Injectors Master Electrical Component List Fuel System Description EVAP and FTP Sensors Fuel Pump Controls OBD II Symbol Description Notice BATT MAIN 1, 2 IGN MAIN 1, 2 HEADLAMPS, PARK LP, HVAC/RKE BATT, AIR, ECM SENSE, ALT SENSE, B/U LAMP, COOL FAN 1, 2 FUEL PUMP, FOG LP, HORN, INJ, IGN1-UH, ELEK IGN, TCC, A/C CLU/ABS IGN Fuses
Figure 8:	EVAP, FTP Sensor and Supercharger Boost Control Solenoid Master Electrical Component List Evaporative Emission Control System Description Secondary Air Injection, and Supercharger Boost Control Solenoid Fuel Injectors OBD II Symbol Description Notice BATT MAIN 1, 2 IGN MAIN 1, 2 HEADLAMPS, PARK LP, HVAC/RKE BATT, AIR, ECM SENSE, ALT SENSE, B/U LAMP, COOL FAN 1, 2 FUEL PUMP, FOG LP, HORN, INJ, IGN1-UH, ELEK IGN, TCC, A/C CLU/ABS IGN Fuses IGN 1-UH Fuse IGN MAIN 1, BTSI, DRL, CANISTER VENT, PWR DROP, TURN, and SIR Fuses IGN 1-UH Fuse Gages
Figure 9:	Ignition Control Module Master Electrical Component List Electronic Ignition (EI) System Description Fuel Pump Controls Heated Oxygen Sensors OBD II Symbol Description Notice TCC, ELEK IGN, and A/C CLU/ABS IGN Fuses Gages
Figure 10:	IAC and EGR Valves Master Electrical Component List Powertrain Control Module Description Subsystem References Secondary Air Injection, and Supercharger Boost Control Solenoid OBD II Symbol Description Notice
Figure 11:	Controlled/Monitored Subsystem References Master Electrical Component List Powertrain Control Module Description Automatic Transmission Controls References IAC, and EGR Valves OBD II Symbol Description Notice A/C Compressor Controls ABS Indicator, Torque Signals, and Steering Indicators Indicators Driver Information Center (DIC) (w/o U40) Fans Cruise Control Generator
Figure 12:	Automatic Transmission Controls References Master Electrical Component List Powertrain Control Module Description Subsystem References OBD II Symbol Description Notice Stop lamp Switch, TCC, Shift Solenoids, and TFT Sensor PRNDL VSS, and ISS Sensors, Pressure Control Solenoid Valve, TCC Release Switch and Fluid Pressure Switches, FP