what is trouble code p0406

2005 CHRYSLER PACIFICA
112,588 MILES
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LEEWILL
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want to change senor but don't know what it is
Mar 8, 2012 at 6:31 PM
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CARADIODOC
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Fault codes never say to replace parts. They only tell you which circuit needs further diagnosis. About 50 percent of the time this is going to be a wiring problem.

P0406 – Exhaust Gas Recirculation Sensor A Circuit High
Mar 8, 2012 at 8:23 PM