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.
Jul 3, 2023 at 12:49 PM
Advertisement
JACOBANDNICKOLAS
CAR REPAIR CONTRIBUTOR
110,190 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.
Images (Click to enlarge)
Jul 3, 2023 at 11:00 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.