Engine Controls - System & Component Testing

• Introduction
• Air Induction Systems
  • Electronic Throttle Control System (ETCS)
• Computerized Engine Controls
  • Engine Control Module
    • Power & Ground Circuits
  • ECM Back-Up Power Circuit (Battery)
  • ECM Power Source Circuit (Ignition Keyed)
    • Notes
    • Circuit Description
    • Diagnosis & Repair
  • Starter Signal Circuit
    • Notes
    • Circuit Description
    • Diagnosis & Repair (Using Lexus Scan Tool)
    • Diagnosis & Repair (Using OBD-II Scan Tool)
• Engine Sensors & Switches
  • Accelerator Pedal Position Sensor
  • Airflow Meter
  • BRAKELIGHT Switch
  • Camshaft Position Sensor
  • Crankshaft Position Sensor
  • Engine Coolant Temperature (ECT) Sensor
  • Fuel Pump Switch
  • Heated Oxygen Sensor
  • Intake Air Temperature (IAT) Sensor
  • Knock Sensors
  • Park/Neutral Position Switch
    • A/T Models
  • Throttle Control Motor
  • Throttle Position Sensor
  • Vapor Pressure Sensor
  • Vehicle Speed Sensor
• Control Units
  • Fuel Pump Electronic Control Unit
• Motors & Relays
  • Throttle Control Motor
  • EFI Main Relay
• Fuel System
  • Fuel Delivery
    • EFI Main Relay
    • Fuel Pump Electronic Control Unit
    • Fuel Pump Switch
    • Fuel Pump Pressure
    • Fuel Pump Resistance & Operation
  • Fuel Control
    • Fuel Injector Circuit
    • Fuel Injector Resistance
    • Fuel Injector Volume
    • Fuel Cut System
• Idle Control System
  • Throttle Body
• Ignition System
  • Notes
  • Timing Control Systems
    • Knock Sensors
• Emission Systems & Sub-Systems
  • Notes
  • Fuel Evaporation System
    • Notes
    • Fuel EVAP System Test
    • Charcoal Canister
    • EVAP Vacuum Switching Valve
    • Vapor Pressure Sensor
    • Vapor Pressure Sensor Vacuum Switching Valve
  • Positive Crankcase Ventilation (PCV)