HINO-P0563 moderate Hino ›

System Voltage High

The HINO-P0563 (Hino) diesel fault code means: System Voltage High. 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-P0563?

  • Check Engine Light on
  • Possible flickering lights or warnings

What Causes HINO-P0563? (Most Likely First)

  • Charging system overcharging High
  • Jump-start or charger at the wrong voltage Moderate
  • Poor ground giving a false reading Low

Can I Still Drive with HINO-P0563?

Short distances only. HINO-P0563 is rated moderate severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.

Frequently Asked Questions

What does P0563 mean on a Hino?

P0563 means System Voltage High. The engine computer is seeing a supply voltage above its normal range.

Is P0563 a Hino-specific code?

No. P0563 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-P0563?

  1. Test the batteries and the charging voltage with a meter.

  2. Clean and tighten the battery and ground connections.

  3. Compare the voltage the engine computer reports with the voltage at the battery.

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 P0563 as a generic OBD-II code)

P0563 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 P0563 Duramax moderate System Voltage High Isuzu moderate System Voltage High MaxxForce moderate System Voltage High PACCAR moderate System Voltage High Power Stroke moderate System Voltage High

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

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