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Check Engine Light/Trouble Code Due to Stuck Open Thermostat on Mazda 3

Problem overview

Some vehicles may experience Check Engine Light illumination with a trouble code indicating the thermostat is stuck open. The thermostat will need to be replaced with a modified one and there is a software update for the Powertrain Control Module (PCM).

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Check Engine Light/Trouble Code Due to Stuck Open Thermostat on Mazda 3

Problem overview

Mazda 3 vehicles with this problem

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Ask our experts about your Mazda.

Check Engine Light/Trouble Code Due to Stuck Open Thermostat on Mazda 3

Problem overview

Mazda 3 vehicles with this problem

Repairs related to this problem

Thermostat Replacement

Need a diagnosis? Trust our Mazda experts.

Search for another problem

Ask our experts about your Mazda.