P0462 on Chevrolet
Fuel Level Sensor 'A' Circuit Low Input
P0462 on Chevrolet vehicles indicates fuel level sensor 'a' circuit low input. Au7o has documented this code across 1 Chevrolet model — most commonly on Colorado. 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 Chevrolet range from $400 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 Chevrolet by Model
Chevrolet Colorado(1 issue)
- Fuel Level Sensor Failure Causing Inaccurate Gauge and Empty Reading2004-2012
A common first-generation Colorado problem is failure of the fuel level sending unit, causing the gauge to read empty, fluctuate, or become inaccurate even with fuel in the tank. Owners often see the low fuel light come on unexpectedly or the gauge drop after fill-up. GM trucks of this era had widespread sender wear issues, and Colorado complaints and forum reports show the same pattern.
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View P0462 across all makes →Frequently Asked Questions
What does P0462 mean on Chevrolet?▼
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 Chevrolet specifically, this code is documented across 1 model.
What causes P0462 on Chevrolet vehicles?▼
Common causes on Chevrolet: 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 Chevrolet?▼
Repair costs on Chevrolet range from $400 to $900, depending on the specific model and root cause.
Which Chevrolet models have P0462 documented?▼
Au7o has documented P0462 on 1 Chevrolet model: Colorado.