Engine Controls Schematics

Fig 1: Main Relay and Powertrain Control Module (PCM) Power and Ground Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 2: Data Link Connector (DLC), Malfunction Indicator Lamp (MIL) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 3: Exhaust Gas Recirculation (EGR) Valve and EVAP Solenoids Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 4: Idle Air Control (IAC) Valve, Mass Air Flow (MAF) Sensor, Vehicle Speed Sensor (VSS) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 5: Ignition System Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 6: Fuel Injectors Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 7: ECT, TP, MAP, FTP and IAT Sensors Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 8: Fuel Pump and Fuel Sender Assembly Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 9: Camshaft Position (CMP), Crankshaft Position (CKP) and Knock Sensors (KS) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 10: Heated Oxygen Sensors (HO2S) Fuse and Relay Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 11: Heated Oxygen Sensors (HO2S) Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 12: Transmission Range Switch Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 13: Four Wheel Drive Switches and Indicator, Front Drive Axle Actuator Pump Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 14: Stoplamp Switch, Transmission Range Switch Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 15: Input and Output Shaft Speed Sensors, Torque Converter Clutch (TCC) Solenoid Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 16: Overdrive Switch and Indicator, Shift Program Switch and Indicator Schematic

Courtesy of GENERAL MOTORS CORP.

Fig 17: Powertrain Control Module (PCM) Idle-Up Inputs Schematic

Courtesy of GENERAL MOTORS CORP.