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Home >> Lexus >> 2004 >> IS 300 Base, Standard >> Repair and Diagnosis (Single Page) >> External Pages >> Different car >> Section 16 (Engine Controls - System & Component Testing) >> Fuel System >> Fuel Delivery >> Fuel Pump Resistance
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Fuel Pump Resistance

WARNING: This page is about a different car, the 2002 Lexus SC 430, 2002 Lexus LS 430, 2002 Lexus IS 300, 2002 Lexus GS 430, and 2002 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.

Remove rear seat cushion. Remove floor service hole cover. Disconnect 5-pin connector from fuel pump and sending unit assembly. Measure resistance between terminals No. 4 and No. 5 at 5-pin fuel pump and sending unit connector. See Figure. Replace fuel pump if resistance is not 0.2-3.0 ohms at 68°F (20°C).

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