P0462 on Infiniti
Fuel Level Sensor 'A' Circuit Low Input
P0462 on Infiniti vehicles indicates fuel level sensor 'a' circuit low input. Au7o has documented this code across 2 Infiniti models — most commonly on FX35, M35. 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. Typical repair costs on Infiniti range from $300 to $900, depending on the specific model and root cause.
Common Causes of P0462
- •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)
P0462 on Infiniti by Model
Infiniti FX35(1 issue)
- Fuel Gauge Sending Unit Failure2003-2012
A common Nissan/Infiniti issue on this era of FX35 is inaccurate fuel level readings caused by wear or contamination of the fuel level sending unit inside the tank. Owners report the gauge sticking, dropping suddenly, or showing empty with fuel still in the tank, sometimes accompanied by a check engine light.
Infiniti M35(1 issue)
- Fuel Gauge Sending Unit Failure2006-2010
Some M35 owners report inaccurate fuel level readings, including gauges that stick, read empty when fuel remains, or fluctuate unexpectedly. The issue is commonly related to wear or contamination in the fuel level sending unit inside the tank, which can affect trip planning and trigger low-fuel warnings incorrectly.
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What does P0462 mean on Infiniti?▼
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 Infiniti specifically, this code is documented across 2 models.
What causes P0462 on Infiniti vehicles?▼
Common causes on Infiniti: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P0462 on a Infiniti?▼
Repair costs on Infiniti range from $300 to $900, depending on the specific model and root cause.
Which Infiniti models have P0462 documented?▼
Au7o has documented P0462 on 2 Infiniti models: FX35, M35.