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john -aka eauto
john -aka eauto, The Car Guy
Category: Chrysler
Satisfied Customers: 15525
Experience:  15 years as a auto tech ASE certified
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06 Town and County 72K; eng light on, Code P0406 EGR system

Resolved Question:

06 Town and County 72K; eng light on, Code P0406 EGR system fault. Is the EGR valve the likely cause or is there a EGR sensor somewhere?
Submitted: 6 years ago.
Category: Chrysler
Expert:  john -aka eauto replied 6 years ago.
its likley a wireing issue or a egr solenoid issue
POSSIBLE CAUSES
  • EGR position sensor signal circuit open
  • EGR position sensor sweep
  • Intermittent condition
  • EGR position sensor signal circuit shorted to 5 volt supply circuit
  • EGR position sensor signal circuit shorted to battery voltage
  • EGR solenoid assembly internal failure
  • Sensor ground circuit open
  • PCM
  • graphic
Customer: replied 6 years ago.

THANKS for the quick reply. However, the information you supplied is actually the same is the "free" code print out I received at Auto Zone this morning. The drawing you attached lacks the actual EGR valve (it's located just above the alternator) it only shows the wireing conection to the EGR valve.

 

Sorry, but I don't see any added value to your response.

Expert:  john -aka eauto replied 6 years ago.
i can give you the complete factory flow chart.......but its not the valve itself
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Customer: replied 6 years ago.
Thanks for sending the additional information. I'll check the voltage.