Engine Controls - Basic Diagnostic Procedures - V6 & V8

• Engine Immobilizer System Availability
• Introduction
• Preliminary Inspection & Adjustments
  • Visual Inspection
  • Mechanical Inspection
    • Compression
• Fuel Systems
  • Notes
  • Fuel Pump Operation
    • Notes
    • Checking Fuel Pump Operation Using Scan Tool (Avalon, Camry, Camry Solara, Sienna, Tacoma, Tundra 3.4L V6 & 4Runner)
    • Checking Fuel Pump Operation Using Scan Tool (Land Cruiser)
    • Checking Fuel Pump Operation Using Scan Tool (Tundra 4.7L V8)
    • Checking Fuel Pump Operation By Applying Battery Voltage To Fuel Pump (Avalon, Camry, Camry Solara, Land Cruiser, Sienna, Tacoma & 4Runner)
    • Checking Fuel Pump Operation By Applying Battery Voltage To Fuel Pump (Tundra)
  • Fuel System Pressure Release
    • Avalon, Camry & Camry Solara
    • Land Cruiser
    • Sienna
    • Tacoma, Tundra & 4Runner
  • Fuel Pressure
    • Avalon, Camry & Camry Solara
    • Land Cruiser
    • Sienna
    • Tacoma, Tundra 3.4L V6 & 4Runner
    • Tundra 4.7L V8
  • Fuel Pump Control Circuit
    • Notes
    • Circuit Opening Relay (Avalon)
    • Circuit Opening Relay (Camry, Camry Solara & Sienna)
    • Circuit Opening Relay (Tacoma)
    • Circuit Opening Relay (Tundra 3.4L V6)
    • Circuit Opening Relay (Tundra 4.7L V8)
    • Circuit Opening Relay (4Runner)
    • EFI Main Relay (Avalon)
    • EFI Main Relay (Camry & Camry Solara)
    • EFI Main Relay (Land Cruiser)
    • EFI Main Relay (Sienna)
    • EFI Main Relay (Tacoma)
    • EFI Main Relay (Tundra 3.4L V6)
    • EFI Main Relay (Tundra 4.7L V8)
    • EFI Main Relay (4Runner)
    • Fuel Pump Electronic Control Unit (ECU) & Fuel Pump Switch (Land Cruiser)
    • Fuel Pump Relay & Fuel Pump Resistor (Tundra 4.7L V8)
• Ignition Systems
  • Notes
  • Spark Test
    • Avalon
    • Camry, Camry Solara & Sienna
    • Land Cruiser & Tundra 4.7L V8
    • Tacoma, Tundra 3.4L V6 & 4Runner
  • Ignition Coil Resistance
    • Avalon
    • Camry, Camry Solara, Sienna, Tacoma, Tundra 3.4L V6 & 4Runner
    • Land Cruiser & Tundra 4.7L V8
  • Camshaft Position Sensor Resistance
    • Avalon
    • Camry, Camry Solara & Sienna
    • Land Cruiser & Tundra 4.7L V8
    • Tacoma, Tundra 3.4L V6 & 4Runner
  • Crankshaft Position Sensor Resistance
    • Avalon, Camry, Camry Solara & Sienna
    • Land Cruiser & Tundra 4.7L V8
    • Tacoma, Tundra 3.4L V6 & 4Runner
• Idle Speed & Ignition Timing
• Summary