Code P0406?

Tiny
GLENN HENDERSON
  • MEMBER
  • 2005 DODGE RAM
  • 5.7L
  • V8
  • 4WD
  • AUTOMATIC
  • 280,000 MILES
I have been fighting a P0406, I did not find any damage on the wire harness, and I have replaced both the ERG Valve and Tube.
Monday, July 3rd, 2023 AT 12:49 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

I have a feeling there is a short to power at some point. When you checked the wire harness, did you test the wires themselves or was it a visual inspection only?

As far as tests, I attached the diagnostics below specific to this code for your vehicle. Take a look through them and let me know if you are comfortable performing them.

Take care and Happy 4th.

Joe

See pics below.
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Monday, July 3rd, 2023 AT 11:00 PM

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