2004 Toyota Avalon XLSFACTORY OEM SERVICE PROCEDURE

Fuel Cut Rpm: Inspection

  1. REMOVE V-BANK COVER 
    1. Using a 5 mm hexagon wrench, remove the 3 cap nuts.
    2. Loosen the V-bank cover fastener counterclockwise.
    3. Remove the V-bank cover.
  2. WARM UP ENGINE 

    Allow the engine to warm up to normal operating temperature.

    Fig 1: Removing V-Bank Cover
    G02879032Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. CONNECT LEXUS HAND-HELD TESTER OR OBDII SCAN TOOL 
    1. Connect the TOYOTA hand-held tester or OBDII scan tool to the DLC3.
    2. Please refer to the TOYOTA hand-held tester or OBDII scan tool operator's manual for further details.
    Fig 2: Connecting Toyota Hand-Held Tester Or OBDII Scan Tool To DLC3
    G02879033Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT FUEL CUT OFF PRM 
    1. Increase the engine speed to at least 3,500 rpm.
    2. Use a sound scope to check for injector operating noise.
    3. Check that when the throttle lever is released, injector operation noise stops momentarily and then resumes.

    HINT:

    Measure with the A/C OFF.

    Fig 3: Inspecting Fuel Cut Off PRM
    G02879034Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    Fuel return rpm: 1,200 rpm 

  5. DISCONNECT LEXUS HAND-HELD TESTER OR OBDII SCAN TOOL 
  6. REINSTALL V-BANK COVER 
    1. Using 5 mm hexagon wrench, install the V-bank cover with the 3 cap nuts.
    2. Press down the V-bank cover fastener.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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