wernersmith1
Cronos Auxiliary Heater Fault
Summary of the thread
The Fiat Cronos 2019 experienced an auxiliary heater malfunction, with symptoms including the inability to activate the parking heater and an error stored in memory. A resistance test indicated a defective glow plug as the cause. Replacing the glow plug resolved the issue, restoring the system's functionality.
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4 comment(s)
wernersmith1 (community.author)
Blower motor and temperature sensor are within spec. Was the error code you saw also related to the glow plug, or something else?
ralfmeyer31
Yes, the error pointed to the glow plug. After replacement, the problem was gone. I would suggest going to the workshop and having it checked.
wernersmith1 (community.author)
Confirmed. Glow plug was the culprit. Replaced and system is now functioning correctly. Thanks for the confirmation.
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FIAT
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CRONOS
ralfmeyer31
I had a similar issue with my Cronos. Climate control was acting up, and the auxiliary heater wouldn't kick in. Did you check the blower motor and temperature sensor? Sometimes those can cause problems with the heat control system.