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P0566

Overview

Code

P0566

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

false

Drivability Impact

Minor

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0566 indicates an issue with the ignition system voltage

Symptoms

Difficulty starting; Poor engine performance

Overview applies to this diagnostic code.

Affected Systems

On This Page

  • Code Definition

  • Symptoms

  • Affected Systems

  • Possible Causes

  • Diagnostic Steps

  • Drive Safety Notes​

More Resources

Ignition voltage

Possible Causes

Faulty ignition system voltage regulator

Diagnostic Steps

1 Inspect ignition system voltage 2 Test voltage regulator

Drive Safety Notes

Potential starting issues if unresolved

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