Section 20 (Engine Controls - Theory & Operation)
WARNING: This page is about a different car, the 2003 Dodge Grand Caravan, 2003 Dodge Caravan, 2003 Chrysler Voyager, and 2003 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Computerized Engine Controls
- Powertrain Control Module
- Transmission Control
- Input Devices
- Notes
- A/C Pressure Transducer
- Auto Shutdown Relay
- Battery Voltage
- Brake Switch
- Camshaft Position Sensor
- Crankshaft Position Sensor
- Cruise Control System Switches
- Data Bus Communication Receive
- Downstream Oxygen Sensor
- Engine Coolant Temperature Sensor
- Ignition Sense
- Inlet Air Temperature Sensor
- Knock Sensor
- Manifold Absolute Pressure Sensor
- O2 Sensor
- Park/Neutral Switch (Transmission Range Sensor)
- Sensor Return
- Throttle Position Sensor
- Transmission Control Module
- Transmission Input Speed Sensor
- Transmission Output Speed Sensor
- Transmission Range Sensor
- Upstream Oxygen Sensor
- Vehicle Speed Sensor (VSS)
- Output Signals
- Notes
- A/C Clutch Relay
- Auto Shutdown Relay
- Data Link Connector
- Distributorless Ignition System
- EGR Transducer Solenoid
- EVAP Purge Solenoid
- Fuel Injectors
- Fuel Pump
- Fuel Pump Relay
- Generator Field
- Idle Air Control Motor
- Leak Detection Pump
- Malfunction Indicator Light
- Radiator Fan Control Relay
- Starter Relay
- Tachometer
- 5-Volt Supply
- 8-Volt Supply
- Fuel Systems
- Ignition Systems
- Emission Systems & Sub-Systems
- Evaporative Emissions System
- Exhaust Gas RECIRCULATION System
- Leak Detection Pump System (3.3L & 3.8L)
- Notes
- LDP At Rest (Not Powered)
- Diaphragm Upward Movement
- Diaphragm Downward Movement
- Pumping Action
- EVAP Leak Detection Test Enabling Conditions
- Section 1 - P1495 Leak Detection Pump Solenoid Circuit
- Section 2 - P1494 Leak Detection Pump Switch Or Mechanical Fault
- Section 3 - P1486 EVAP Leak Monitor Pinched Hose Found
- Section 4 - No DTC Can Be Set During This Time
- Section 5 - DTC P0456, P0442, P0455 EVAP Leak Monitor & Leak Detected
- Diagnostic Tips
- Test Equipment
- Natural Vacuum Leak Detection (2.4L)
- On-Board Refueling Vapor Recovery
- Pressure Relief/Rollover Valve
- Positive Crankcase Ventilation
- Self-Diagnostic System
- On-Board Diagnostics
- Data Link Connector
- PCI Bus System
- State Display Test Mode
- Task Manager
- Test Sequence
- Malfunction Indicator Light
- Diagnostic Trouble Code Priority
- DTC Self-Erasure
- Trip Indicator
- Freeze Frame Data Storage
- Similar Conditions Window
- Monitors
- Non-Monitored Circuits
- High & Low Limits
- Trip Definition
- Miscellaneous Controls
- Wiring Diagrams