Avalon 1995-1996

Oil Pressure Sensor/Switch

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Location



Specific to:

Toyota Avalon 1995-1996



Click image to see an enlarged view

Fig. Location of the oil pressure switch-1MZ-FE engine

Removal & Installation



Specific to:

Toyota Avalon 1995-1996

  1. Turn the ignition key to the OFF position.
  2.  
  3. Locate the oil pressure-sending unit on the engine.
  4.  
  5. Disconnect the sending unit electrical harness.
  6.  
  7. Unfasten and remove the sending unit from the engine.

    Click image to see an enlarged view

    Fig. Always apply a thread sealant before re-installing it into the engine

  8.  

To install:

  1. Coat the new sending unit with Teflon® tape or electrically conductive sealer.
  2.  
  3. Install the sending unit and secure.
  4.  
  5. Attach the sending unit-s electrical connector.
  6.  
  7. Start the engine, allow it to reach operating temperature and check for leaks.
  8.  
  9. Check for proper sending unit operation.
  10.  

Testing



Specific to:

Toyota Avalon 1995-1996

A quick way to determine if the gauge (idiot light) or sending unit is faulty is to disconnect the sending unit electrical harness and ground it (if two terminal, jumper between the terminals). If the gauge responds, the sending unit may be faulty. Proceed with the sending unit test.

  1. Disconnect the sending unit electrical harness.
  2.  
  3. Using an ohmmeter, check continuity between the sending unit terminals (sending unit terminal and ground).
  4.  
  5. With the engine stopped, continuity should exist.
  6.  
  7. With the engine running, continuity should not exist.
  8.  
  9. If continuity does not exist as stated, the sending unit is faulty.
  10.  

 
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