Engine Controls - System/Component Tests 4.6L

• Introduction
• Computerized Engine Controls
  • Pcm Power & Ground Check
    • Ground Circuits
    • Power Circuits
• Engine Sensors & Switches
  • Notes
  • A/C On (A/C Request) Switch Test
  • A/C Pressure Sensor
  • A/C Pressure Switch
  • Brake Switch
  • Camshaft Position Sensor
  • Crankshaft Position Sensor
  • Engine Coolant Temperature (ECT) Sensor
  • Fuel Tank Vapor Pressure Sensor
  • Intake Air Temperature (IAT) Sensor
  • Knock Sensor (KS)
  • Manifold Absolute Pressure (Map) Sensor
  • Mass Airflow (MAF) Sensor
  • Manifold Air Temperature (Mat) Sensor
  • Oxygen Sensor (O2S)
  • Park/Neutral Position (PNP) Switch
  • Power Steering Pressure (PSP) Switch
  • Throttle Position (TP) Sensor
  • Vehicle Speed Sensor (Pm Generator Type)
  • Vehicle Speed Sensor (Led Type)
• Motors, Relays & Solenoids
  • Motors
    • Idle Air Control (IAC) Motor
  • Relays
    • A/C Clutch Relay
    • Electric AIR Pump Relay
    • Fuel Pump Relay
  • Solenoids
    • Notes
    • AIR By-Pass Valve Solenoid
    • Canister Purge Solenoid
    • EGR Control Solenoid
• Fuel System
  • Fuel Delivery
    • Notes
    • Fuel Pressure Regulator
    • Fuel Pump Relay
    • Fuel Pump Relay By-Pass Procedure
  • Fuel Control
    • Fuel Injector(s)
    • Fuel Injector Balance Test
    • Injector Leak Test
    • Oxygen Sensor
• Idle Control System
  • Idle Air Control (IAC) Motor
• Ignition System
  • Notes
  • Timing Control Systems
    • Ignition Control (IC) Timing Advance System
    • Knock Sensor (KS) System Without KS Module
    • Knock Sensor (KS) System With KS Module
• Emission Systems & Sub-Systems
  • Air Injection
    • AIR Pump (Belt-Driven)
    • Check Valve
  • Exhaust Gas RECIRCULATION
    • Notes
    • System Test (Vacuum Operated)
    • EGR Control Solenoid (Normally Closed)
    • EGR Control Solenoid (Normally Open)
    • Linear EGR Valve
    • Negative Backpressure EGR Valve
    • Positive Backpressure EGR Valve
  • Fuel Evaporation Control
    • Canister Purge Solenoid (Normally Closed)
    • Fuel Tank Pressure Control Valve
  • Positive Crankcase Ventilation (PCV)
    • Required Service
    • Checking PCV Valve Function
• Miscellaneous Controls
  • Notes
  • Hot Light Or Coolant Temperature Light
  • Transmission
    • Notes
    • Converter Clutch Solenoid
    • Converter Lock-Up Signal At Transmission
    • Converter Lock-Up Signal From PCM
  • Pcm Controlled Warning Lights
    • Warning Light Diagnosis
  • A/C Compressor Clutch Controls
  • Electric Cooling Fans
• Circuit Diagnosis Tests
  • A/C Clutch Circuit Diagnosis
    • Notes
    • Description
    • Compressor Clutch Control Circuit Diagnosis
  • Electric Cooling Fan Circuit Diagnosis
    • Notes
    • Description
    • Low speed cooling fan operation will occur when:
    • High speed cooling fan operation will occur when:
    • Cooling Fan Functional Check
    • Cooling Fan Symptom Check No. 1
    • Cooling Fan Symptom Check No. 2
    • Cooling Fan Symptom Check No. 3
    • Cooling Fan Symptom Check No. 4
    • Cooling Fan Symptom Check No. 5
    • Diagnostic Aids
• Component Locations