НАСОС ПОДАЧИ МОЧЕВИНЫ ПРОВЕРКА


  1. INSPECT UREA PUMP


    1. Inspect the level sensor.


      1. B007TH2E01
        Text in Illustration
        *a

        Component without harness connected

        (Urea Pump)
        *b Upper
        *c Lower

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        14(LV1) - 6(ELV1) Float position is upper 53.56 to 56.08 kΩ
        Float position is lower 1.40 to 1.46 kΩ

    2. Inspect the tank heater.


      1. B007OPVE01
        Text in Illustration
        *a

        Component without harness connected

        (Urea Pump)

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        9(TH+) - 11(TH-) 25°C (77°F) 1.39 to 1.54 kΩ

    3. Inspect the temperature sensor.


      1. B007OPVE02
        Text in Illustration
        *a

        Component without harness connected

        (Urea Pump)

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        1(TUW) - 2(ETUW) 20°C (68°F) 2.47 to 2.56 kΩ
        30°C (86°F) 1.69 to 1.75 kΩ

    4. Inspect the pump motor.


      1. B007OPVE03
        Text in Illustration
        *a

        Component without harness connected

        (Urea Pump)

        Measure the resistance according to the value(s) in the table below.

        Standard Resistance
        Tester Connection Condition Specified Condition
        7(PHAA) - 8(PHAB) 20 to 30 °C (68 to 86°F) 0.35 to 0.43 Ω
        7(PHAA) - 16(PHAC)
        8(PHAB) - 16(PHAC)
        7(PHAA) - 15(MGND) Always 10 kΩ or higher
        8(PHAB) - 15(MGND)
        16(PHAC) - 15(MGND)

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