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Home >> Toyota >> 2006 >> Sequoia Limited, RWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> Fuel Pump Relay >> On-Vehicle Inspection

On-Vehicle Inspection

  1. REMOVE RELAY BOX COVER 
  2. REMOVE FUEL PUMP RELAY 
  3. INSPECT FUEL PUMP 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 continuity between terminals 3 and 4.

      If there is no continuity, replace the relay.

      Fig 1: Checking Fuel Pump Relay Continuity Between Terminals 1 And 2
      G04507050Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  4. INSPECT FUEL PUMP RELAY OPERATION 
    1. Apply battery positive voltage across terminals 1 and 2.
    2. Using an ohmmeter, check that there is no continuity between terminals 3 and 4.

      If there is continuity, replace the relay.

  5. REINSTALL FUEL PUMP RELAY 
  6. REINSTALL RELAY BOX COVER 
    Fig 2: Checking Fuel Pump Relay Continuity Between Terminals 3 And 4
    G04507051Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002