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P0119

Overview

Code

P0119

Code Type

P

Code Class

P0

System

Engine

Severity Level

Medium

Emissions Related

true

Drivability Impact

Minor

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0119 indicates an intermittent or erratic signal from the engine coolant temperature sensor circuit

Symptoms

Intermittent Check Engine Light; Temperature gauge fluctuation; Engine hesitation

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

Intermittent ECT data can cause unstable fuel delivery and cooling fan operation

Possible Causes

Loose or damaged wiring/connectors; Failing ECT sensor; Vibration-related electrical faults

Diagnostic Steps

1 Scan for intermittent codes; 2 Inspect wiring and connectors; 3 Perform wiggle test while monitoring live data; 4 Inspect sensor mounting location; 5 Replace the ECT sensor if intermittent faults persist

Drive Safety Notes

Intermittent cooling system behavior may occur Prompt repair is recommended

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