Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1997 Lexus LX 450FACTORY OEM SERVICE PROCEDURE
Fuel Pump Resistor
- Ensure ignition is off. Disconnect electrical connector at fuel pump resistor. Fuel pump resistor is located on passenger's side of engine compartment, near fenderwell and cruise control actuator. See Fig 1. Fuel pump resistor contains a Dark Gray 2-pin electrical connector.
- Using ohmmeter, check resistance between terminals on electrical connector for fuel pump resistor. Replace fuel pump resistor if resistance is not .70-.76 ohms at 68°F (20°C).
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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