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EFI Main Relay: Inspection

WARNING: This page is about a different car, the 2004 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. REMOVE RELAY BOX COVER 
  2. REMOVE EFI MAIN RELAY 
    Fig 1: Removing Relay Box Cover & EFI Main Relay
    G02639454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT EFI MAIN RELAY 
    1. Inspect the relay continuity.
      1. Using an ohmmeter, check that there is continuity between terminals 1 and 2.

        If there is no continuity, replace the relay.

      2. Check that there is no continuity between terminals 3 and 5.
        3. Fig 2: Checking Continuity Between Terminals 1 + 2 & No Continuity Between Terminals 3 + 5 Using Ohmmeter
        G02639455Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is continuity, replace the relay.

    2. Inspect the relay operation.
      1. Apply battery positive voltage to terminals 1 and 2.
      2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
        3. Fig 3: Checking Continuity Between Terminals 3 + 5 Using Ohmmeter
        G02639456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is no continuity, replace the relay.

  4. REINSTALL EFI MAIN RELAY 
  5. REINSTALL RELAY BOX COVER 
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