Inspect Oil Pressure Switch Continuity

2004 Toyota Matrix XR, FWD, StandardSECTION Inspect Oil Pressure Switch Continuity
WARNING: This page is about a different car, the 2002 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the connector from the switch.
  2. Check that continuity exists between terminal and ground with the engine stopped.
    Fig 1: Testing Oil Pressure Switch
    G01896056Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002
  3. NOTE: Oil pressure should be over 24.5kPa (0.25 kgf/cm2 , 3.55 psi). If operation is not as specified, replace the switch.
  4. Check that no continuity exists between terminal and ground with the engine running.
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Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
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  • β€’ You are not confident in the next step or safety outcome.