HINO-P2227 moderate Hino ›

Barometric Pressure Circuit Range/Performance

The HINO-P2227 (Hino) diesel fault code means: Barometric Pressure Circuit Range/Performance. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
intermediate
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What Are the Symptoms of HINO-P2227?

  • Check Engine Light on
  • Possible reduced power

What Causes HINO-P2227? (Most Likely First)

  • Barometric sensor reading incorrectly (on many engines it is inside the engine computer) High
  • Wiring or connector fault Moderate

Can I Still Drive with HINO-P2227?

Short distances only. HINO-P2227 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.

Frequently Asked Questions

What does P2227 mean on a Hino?

P2227 means Barometric Pressure Circuit Range/Performance. The barometric pressure reading does not make sense against what the engine computer expects, for example compared with boost pressure at key-on.

Is P2227 a Hino-specific code?

No. P2227 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions Hino uses to set it on its diesels are in Hino service information.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose HINO-P2227?

  1. With the engine off, compare the barometric reading with local barometric pressure and with the boost sensor reading.

  2. Find where the sensor is on your engine in the service information.

  3. Check the sensor circuit.

Sources 3

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

  • Hino service bulletin SB-14-029 (filed with NHTSA)troubleshooting for DTC P2201 and P2214 on 2011-2015 Hino 238, 258, 268 and 338, showing these trucks report SAE diagnostic trouble codes
  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)
  • SAE J2012Diagnostic Trouble Code Definitions (defines P2227 as a generic OBD-II code)

P2227 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 P2227 Isuzu moderate Barometric Pressure Sensor A Range/Performance MaxxForce moderate Barometric Pressure Sensor Performance

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