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.
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HOMESERVICE MANUALSNISSAN-DATSUN2003FRONTIER BASE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - SELF-DIAGNOSTICSDIAGNOSTIC TESTSDTC P0461: FUEL LEVEL SENSORDTC CONFIRMATION TEST (USING CONSULT-II)
2003 Nissan-Datsun Frontier Base, Standard
DTC Confirmation Test (Using CONSULT-II)
2003 Nissan-Datsun Frontier Base, StandardSECTION DTC Confirmation Test (Using CONSULT-II)
NOTE:
Use the following test to check overall function of fuel level sensor circuit. During this test, 1st trip DTC may not be confirmed.
- Release fuel system pressure. See FUEL SYSTEM in BASIC DIAGNOSTIC PROCEDURES article. Remove fuel feed hose from fuel level sensor unit located on top of fuel tank.
- Connect a fuel hose to fuel level sensor unit. Turn ignition off and wait at least 10 seconds. Turn ignition on. Select FUEL LEVEL SE in DATA MONITOR mode with CONSULT-II. Check FUEL LEVEL SE output voltage and note it.
- Select FUEL PUMP in ACTIVE TEST mode with CONSULT-II. Press ON and drain about 7.93 Gals. (30 L) of fuel, then press OFF. Fill tank with drained fuel.
- Check FUEL LEVEL SE output voltage. Voltage should change more than 0.03 volt during draining and refilling. If voltage is not as specified, go to DIAGNOSTIC PROCEDURE . If voltage is as specified, system is okay at this time.
RENDER: 1.0x
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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.