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Fuel Pump Resistance

On ES300, measure resistance between fuel pump 2-pin terminals. On RX300, measure resistance between 5-pin fuel pump terminals No. 4 and 5. See Fig 1 and Fig 2 . Replace fuel pump if resistance is not 0.2-3.0 ohms at 68°F (20°C).

Fig 1: Identifying Fuel Pump Terminals (ES300)

Fig 2: Checking Fuel Pump Resistance (RX300)