P0462 on Hyundai: How to Diagnose & Fix
Fuel Level Sensor 'A' Circuit Low Input
1 Hyundai model · 1 documented issue · $350-$900 repair
P0462 on Hyundai by model: symptoms, diagnosis and fix
Owners of 2001-2006 Elantras frequently report in-tank fuel pump module problems, including hard starting, no-start conditions, and erratic fuel gauge behavior due to sender wear. On higher-mileage cars, the pump can become weak or fail intermittently, especially after hot soak. Forum reports and repair histories commonly pair pump replacement with sender issues because both are integrated in the tank module.
Common Symptoms
- long crank before starting
- engine cranks but will not start
- loss of power under load
- fuel gauge reads empty when tank has fuel
- fuel gauge fluctuates unexpectedly
How to Fix
Check fuel pressure during crank/no-start events and verify power and ground at the pump connector before condemning the module. If pressure is low or absent and wiring is intact, replace the fuel pump module or pump/sender assembly. It is also wise to inspect the tank connector and replace the fuel filter if service history is unknown.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Hyundai 31110-2D501 fuel pump and sender module assemblyOEMHyundai 31110-2D501
complete in-tank pump/sender module after pressure/electrical/sender testing confirms the integrated module branch Fitment/availability: 2001-2006 Hyundai Elantra four-door and five-door within the retailer's 2000-2006 fitment. Confirm g…
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Sources for this issue (2)
P0462 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0462 mean on a Hyundai?
P0462 stands for "Fuel Level Sensor 'A' Circuit Low Input." P0462 indicates the powertrain control module detected a fuel-level sensor signal voltage that is lower than the normal operating range — often interpreted as an empty or near-empty reading that may not reflect the actual fuel amount. The fuel level sender reports tank level via a variable resistance, and an abnormally low signal can stem from a short to ground or a failed sender. This usually shows up as a stuck-low or inaccurate fuel gauge rather than a driving problem. It is low-urgency but should be corrected so the gauge and EVAP monitors work properly. On Hyundai it is documented across 1 model: Elantra.
What are the most common causes of P0462?
The most common causes of P0462 are: Faulty fuel level sensor / sending unit, Short to ground in the signal wire, Corroded or damaged connector at the fuel pump module, Open or high-resistance ground circuit, Worn sender resistor card or float, Damaged wiring harness to the tank, Instrument cluster or PCM fault (less common). The specific cause varies by vehicle.
How much does it cost to fix P0462 on a Hyundai?
Published repair estimates on Hyundai range from $350 to $900 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0462 on a different make?
View P0462 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.