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Kalos Temperature Sensor Defect

I'm having trouble with my 2005 Chevrolet Kalos, gasoline engine. It has 40862 km on it. The error memory shows a temperature sensor defect in the heat exchanger. This triggers an error message on the speedometer, and the air conditioning won't activate. Could this be related to the air conditioning control unit?

A 2005 Chevrolet Kalos with a gasoline engine and 40,862 km is experiencing a temperature sensor defect in the heat exchanger, causing an error message on the speedometer and disabling the air conditioning. The issue may be related to the air conditioning control unit. After consulting a workshop, it was confirmed that the air conditioning control unit was defective and required replacement.

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4 comment(s)

That sounds familiar. I had similar symptoms in my 2012 Opel Astra – error messages, and the climate control wouldn't work. Was the engine cooling or coolant level also affected?

Thanks for the reply. No, the engine cooling seems normal, and I haven't seen any coolant leaks. Could this still point to a sensor calibration issue?

In my Astra, the coolant level and engine temperature were also normal. Considering the symptoms and error codes, the temperature sensor could be the problem, but with the HVAC failing too, it might be best to have a workshop check it out.

Thanks for the information. I took it to a workshop, and you were right. The air conditioning control unit was defective and needed to be replaced. The total repair was 980€.

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CHEVROLET

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KALOS