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Fuel Pump Relay: Inspection

  1. REMOVE RELAY BOX COVER 
  2. REMOVE FUEL PUMP RELAY (Marking: F/PUMP) 
    Fig 1: Identifying Fuel Pump Relay
    G00920356Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSPECT FUEL PUMP RELAY CONTINUITY 
    1. Using an ohmmeter, check that there is a 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.

      If there is a continuity, replace the relay.

    Fig 2: Checking Fuel Pump Relay Continuity
    G00920357Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT FUEL PUMP RELAY OPERATION 
    1. Apply the battery positive voltage across terminal 1 and 2.
    2. Using an ohmmeter, check that there is a continuity between terminal 3 and 5.

      If there is no continuity, replace the relay.

    Fig 3: Checking Fuel Pump Relay Operation
    G00920358Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  5. REINSTALL FUEL PUMP RELAY 
  6. REINSTALL RELAY BOX COVER