Engine Controls - Basic Diagnostic Procedures

• Introduction
• Programming
  • Powertrain Control Module
    • Notes
    • Programming Powertrain Control Module
    • Updating Secret Key Data
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Notes
    • Compression
  • Checking Engine Vacuum
• Fuel Systems
  • Notes
  • Fuel System Pressure Release
  • Fuel Pressure Test
    • Cherokee & Wrangler
    • Grand Cherokee
  • Fuel Pump Amperage Test
    • Cherokee
    • Grand Cherokee
    • Wrangler
  • Fuel Pump Volume Test
  • Fuel Pump Control Circuit
    • Fuel Pump Relay
• Ignition Systems
  • Camshaft Position Sensor
  • Crankshaft Position Sensor
  • Ignition Coil
• No-Start Diagnosis
  • Engine Cranks But Does Not Start
    • Notes
    • Cherokee
    • Grand Cherokee
    • Wrangler
  • No Response From Pcm With A No-Start Condition
    • Notes
    • Cherokee
    • Grand Cherokee
    • Wrangler
• DRIVEABILITY Problems
  • Notes
  • Start & Stall Condition
    • Notes
    • Cherokee & Wrangler
    • Grand Cherokee
• Verification Tests
  • Powertrain Verification Test VER-1
• Summary