Software update for false catalyst failure code on Honda Civic

On some models the Powertrain Control Module (PCM) can misinterpret data and set a false Check Engine light (MIL) for catalyst failure. A software update from Honda will address this issue.
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Average mileage: 122,000 (122,000–122,000)
5 model years affected: 2006, 2007, 2008, 2009, more2010
6 people reported this problem
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2006 Honda Civic 122,000 mi,
Check engine light comes in & goes out periodically. Catalytic converter alarm according to the code.