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Fuel Pump: Inspection

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  1. INSPECT FUEL PUMP 
    1. Check the resistance.
      1. Using an ohmmeter, measure the resistance between the terminals.

      Standard Resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      1-2 0.2 to 3.0 Ω at 20°C (68°F)

      If the result is not as specified, replace the fuel pump.

      Fig 1: Identifying Fuel Pump
      G05271562Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Check the operation.
      1. Apply battery voltage to both terminals. Check that the pump operates.
      NOTE:
      • These tests must be done quickly (for less than 10 seconds) to prevent the coil from burning out.
      • Keep the fuel pump as far away from the battery as possible.
      • Always do the switching at the battery side.

      If the motor does not operate, replace the fuel pump.