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2005 Dodge Ram OBD CODE 0406

Tiny
JETSKIINDUDE
  • MEMBER
  • 2005 DODGE RAM
  • V8
  • 4WD
  • AUTOMATIC
  • 155,000 MILES
Where is the EGR and can it be repaired or does it have to be replaced?
Wednesday, February 13th, 2008 AT 12:04 AM

4 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
It's not a code to replace the EGR, P0406=EGR position sensor circuit high voltage. You need to test the wires in the 5 volt ref circuit between the sensor and the PCM. Do you have a scanner that can read sensor values? If yes read the EGR position sensor voltage, is it above 4.5volt or below?
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Wednesday, February 13th, 2008 AT 8:26 AM
Tiny
JETSKIINDUDE
  • MEMBER
  • 2 POSTS
I'm not sure. I borrowed a scanner from Autozone. Can it be read with a regular OBD scanner or do I have to read it off the EGR wires themselves? And thank you for your help.

PATS FAN MYSELF!
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Thursday, February 14th, 2008 AT 10:01 PM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Yea those Pats. All year. Then. BAM!
Some scanners can give the voltage but not many. Will most likly need to test the circuit itself, with a DVOM.
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Friday, February 15th, 2008 AT 7:45 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
I will look further.
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Friday, February 15th, 2008 AT 8:07 AM

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