HINO-P0462 minor Hino ›

Fuel Level Sensor Circuit Low

The HINO-P0462 (Hino) diesel fault code means: Fuel Level Sensor Circuit Low. This is a minor severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
intermediate
Estimated cost
$100 - $500 (sender unit and access labor)
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Common Symptoms

  • Check Engine Light on
  • Fuel gauge stuck, erratic, or implausible
  • Possibly inaccurate distance-to-empty

Probable Causes (Ranked by Likelihood)

  • Worn or sticking fuel level sender in the tank High
  • Damaged wiring or corroded connector to the sender High
  • Instrument cluster or ECM input fault Low

Frequently Asked Questions

What does Hino code P0462 mean?

Hino diagnostic trouble code P0462 (DPF Differential Pressure Sensor Low) is a moderate-severity fault on Hino medium-duty diesel engines. It indicates a problem in the DPF / aftertreatment that should be verified with a scan tool (Hino DX3 / DX4) before replacing any parts.

Can I drive my Hino truck with P0462?

Short runs may be possible but do not ignore — Hino medium-duty aftertreatment faults cascade quickly into 5-mph derate or no-restart. Schedule diagnosis immediately.

How much does it cost to fix Hino P0462?

Estimated repair cost runs $500-$3,500. Sensor, wiring, and DEF-related repairs fall at the low end; DPF service, turbo, injector, and EGR cooler work fall at the high end and may require dealer-level programming.

Mechanics Guide Step-by-step diagnosis

Step-by-Step Diagnostic Procedure

  1. Confirm the complaint: compare the gauge across a full fill - a stuck reading confirms the sender.

  2. Read the level sensor value on a scan tool while adding fuel.

  3. Inspect the sender connector and wiring at the tank.

  4. Replace the sender/sending unit if the signal is dead or sticks; note: Fuel level signal stuck low - sender or wiring, not aftertreatment.

Sources 2

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)
  • SAE J2012Diagnostic Trouble Code Definitions (defines P0462 as a generic OBD-II code)

P0462 on Other Platforms

The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:

Gas / Automotive (OBD-II) Generic OBD-II definition for P0462 Isuzu minor Fuel Level Sensor Circuit Low

Commonly Affected Vehicles

  • Hino 155 / 155h with J05 5.1L
  • Hino 195 / 195h (hybrid) with J05D 5.1L
  • Hino 258 / 258LP / 268 with J08 7.7L
  • Hino 338 / 338CT with J08 7.7L
  • Hino 358 / 358CT (post-2019 J-series / A09C)
  • Toyota Dyna / Hino-branded export chassis with J05/J08

Explore More

More Hino codes → Diesel home All diesel codes Heavy-duty Guides

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