A 'TPC Inactive' warning light has been illuminating off an on for no obvious reason.

Asked by erh Dec 26, 2013 at 09:20 AM about the 2006 Porsche 911 Carrera S Coupe RWD

Question type: Maintenance & Repair

1 Answer
30

CaptainR answered 10 years ago

the TPC inactive indicates the monitors, one or all have lost battery life and will need to be replaced. You should replace all of them even if only one is bad since the battery life will be about the same. Cost about 130 plus labor per tire.

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