FixVault

Circuit Opening Relay: Inspection

  1. REMOVE CIRCUIT OPENING RELAY 
  2. INSPECT CIRCUIT OPENING RELAY 
    1. Inspect the relay continuity.
      1. Using and ohmmeter, check that there is continuity between terminals 1 and 2.

        If there is continuity, replace the relay.

      2. Check that there is no continuity between terminals 3 and 5.
      Fig 1: Inspecting Circuit Opening Relay Continuity
      G04241374Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is continuity, replace the relay.

    2. Inspect the relay operation.
      1. Apply battery positive voltage across terminals 1 and 2.
      2. Using an ohmmeter, check that there is continuity between terminals 3 and 5.
      Fig 2: Inspecting Circuit Opening Relay Operation
      G04241375Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      If there is no continuity, replace the relay.

  3. REINSTALL CIRCUIT OPENING RELAY