P0606 on the 2011 Honda Civic
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| A15120C | 2017-05-22. Service bulletin. "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." |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.