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P0593

Overview

Code

P0593

Code Type

P

Code Class

P0

System

Engine

Severity Level

High

Emissions Related

true

Drivability Impact

Major

Diagnostic Protocol

OBD2

Freeze Frame Useful

true

Code Definition

Diagnostic trouble code P0593 indicates an intermittent fault in the cooling system thermostat control circuit

Symptoms

Engine misfire; Overheating

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

Thermostat control system

Possible Causes

Faulty thermostat control; Wiring issues

Diagnostic Steps

1 Inspect thermostat control circuit 2 Test thermostat

Drive Safety Notes

Overheating risks if unresolved

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