rudolf_dark81
Estima Rear Window Heating Issue
Summary of the thread
The rear window heating issue in a 2011 Toyota Estima was linked to a heavily discharged and defective battery. The problem also affected the windshield heating and stored an error code. After replacing the battery and clearing the error memory, the rear window heating functioned correctly. Checking the fuses and battery voltage were suggested steps, with a recommendation to seek professional diagnostics if needed.
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4 comment(s)
rudolf_dark81 (community.author)
I have not checked the fuses yet. I will do that immediately. Where are the relevant fuses located? I will also check the battery voltage. What voltage should I be looking for?
melinahimmel61
The fuses are in the engine compartment and under the dashboard, check the manual to be sure. Regarding voltage, anything below 12.4V indicates a potential issue. In my case, the battery was indeed the culprit, but I would advise a workshop to perform a diagnostic check, because it might be other things, like a defective wire.
rudolf_dark81 (community.author)
Thank you for the advice. I had the battery checked, and you were correct. It was heavily discharged and defective. After replacing the battery and clearing the error memory, the rear window heating now functions correctly. The total repair cost was 290€.
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TOYOTA
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ESTIMA
melinahimmel61
I had a similar problem with my Estima's window demister. Did you check the fuses? Also, what's the battery voltage when the engine is off?