Honda Civic 2006–2011 — technical service bulletin
Bulletin A15120C · NHTSA communication 10099946 · issued Dec 4, 2015
Technical service bulletin
communication type
Engine
component
2006–2011
model years
12
vehicle entries
Official summary
"service news article - is the mil on with dtc p0606 (ecm/pcm processor malfunction)? Check for aftermarket spark plugs that include a built-in capacitor; they can cause electrical interference that can set this dtc. If the engine has that type of spark plugs, swap them with a set of the recommended spark plugs. Then, clear the dtc and retest. If the dtc doesn t come back, you ve found the problem. Let the service advisor know so he or she can contact your customer for direction. But if it does come back . . . Then continue with normal system troubleshooting."
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.