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, Serial Data, and MIL 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 IP-IGN, CRUISE, and ECM Fuses Indicators G100, G111, G113 DLC
Figure 2:	5 Volt and Low Reference Bussing Master Electrical Component List Powertrain Control Module Description TP, MAP, ECT, and IAT Sensors PCM Power, Ground, Serial Data, and MIL OBD II Symbol Description Notice
Figure 3:	TP, MAP, ECT, and IAT Sensors Master Electrical Component List Powertrain Control Module Description MAF Sensor, 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 TP, MAP, ECT, and IAT Sensors 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 Gages VSS, and ISS Sensors, Pressure Control Solenoid Valve, TCC Release Switch and Fluid Pressure Switches, FP G100, G111, G113 G100, G111, G113
Figure 5:	Heated Oxygen Sensors Master Electrical Component List Powertrain Control Module Description Ignition Control Module MAF Sensor, 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:	Ignition Control Module Master Electrical Component List Electronic Ignition (EI) System Description Fuel Control Heated Oxygen Sensors OBD II Symbol Description Notice TCC, ELEK IGN, and A/C CLU/ABS IGN Fuses OBD II Symbol Description Notice Gages G100, G111, G113
Figure 7:	Fuel Control 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 8:	Fuel Injectors Master Electrical Component List Fuel System Description EVAP Controls and Fuel Tank Pressure (FTP) Sensors Fuel Control 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 9:	EVAP Controls and Fuel Tank Pressure (FTP) Sensor Master Electrical Component List Evaporative Emission Control System Description IAC Valve, EGR Valve, and Secondary Air Injection (AIR) 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 Gages IGN 1-UH Fuse
Figure 10:	Secondary Air Injection, IAC Valve, and EGR Valve Master Electrical Component List Exhaust Gas Recirculation (EGR) System Description Controlled/Monitored Subsystem References EVAP Controls and Fuel Tank Pressure (FTP) Sensors OBD II Symbol Description Notice AIR, ECM SENSE, ALT SENSE, and B/U Lamp Fuses 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 G101
Figure 11:	Controlled/Monitored Subsystem References Master Electrical Component List Powertrain Control Module Description Transmission Controls References IAC Valve, EGR Valve, and Secondary Air Injection (AIR) OBD II Symbol Description Notice A/C Compressor Controls Indicators Indicators Driver Information Center (DIC) (w/o U40) Fans Cruise Control Generator
Figure 12:	Transmission Controls References Master Electrical Component List Powertrain Control Module Description Controlled/Monitored 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