Engine Controls - Theory & Operation
- Introduction
- Computerized Engine Controls
- Powertrain Control Module (Pcm)
- Input Devices
- Notes
- A/C Switch
- Automatic Shutdown (ASD) Relay Input Signal
- Battery Temperature Sensor
- Battery Voltage Signal
- Brake Switch
- Camshaft Position (CMP) Sensor
- Crankshaft Position (CKP) Sensor
- Cruise Control Switches
- Engine Coolant Temperature (ECT) Sensor
- Heated Oxygen Sensor (HO2S)
- Ignition Circuit
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Overdrive/Override (OD/OR) Switch (A/T)
- Park/Neutral (P/N) Switch
- Power Steering Pressure (PSP) Switch (2.5L)
- Serial Communications Interface (SCI) Receive
- Throttle Position (TP) Sensor
- Vehicle Speed Sensor (VSS)
- Vehicle Theft Security System (VTSS)
- Output Signals
- Notes
- A/C Compressor Clutch Relay
- Automatic Shutdown (ASD) Relay
- Cruise Control Servo
- Evaporative (EVAP) Emission System
- Fuel Injectors
- Fuel Pump Relay
- Generator Field
- Generator Light
- Idle Air Control (IAC) Motor
- Ignition Coil
- Injection Timing
- Malfunction Indicator Light (MIL)
- Radiator Cooling Fan Relay
- Serial Communication Interface (SCI) Transmit
- Upshift Indicator Light (M/T)
- Fuel System
- Ignition System
- Hall Effect System
- Notes
- Engine Coolant Temperature (ECT) Sensor
- Crankshaft Position (CKP) Sensor
- Distributor (Cherokee & Wrangler)
- Ignition Coil (Cherokee & Wrangler)
- Ignition Coils (Grand Cherokee)
- Intake Air Temperature (IAT) Sensor
- Manifold Absolute Pressure (MAP) Sensor
- Powertrain Control Module (PCM)
- Throttle Position (TP) Sensor
- Hall Effect System
- Emission System
- Self-Diagnostic System
- Miscellaneous Controls