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P0681

Overview

Code

P0681

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

false

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0681 indicates a malfunction in the engine control module (ECM) power relay control circuit

Symptoms

Check Engine Light 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

Engine Control Module (ECM)

Possible Causes

Faulty ECM relay Power supply issue

Diagnostic Steps

1 Inspect ECM power relay 2 Test ECM power circuit

Drive Safety Notes

A power issue can cause engine failure or poor performance

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