Jump to content

allpar, the Chrysler - Dodge - Jeep car and truck site

Hello, Allpar Forums member or visitor! If you were an active member (more than two posts) or subscriber, you would not see this ad!

Register for a free account or Sign in (see top right of page for Facebook/Open ID login icons).


2006 Dodge Ram 1500 5.7 Hemi Code P0405

This topic has been archived. This means that you cannot reply to this topic.
1 reply to this topic

#1 aero654

  • Inactive
  • 16 posts

Posted January 22, 2009 at 07:01 pm

2006 Dodge Ram 5.7 Hemi. 60k miles. "Engine" light just came on yesterday. Took it to AutoZone tonight and had them put the scan tool on it. Code P0405 - EGR Sensor A Circuit Low. Not sure where to start here. Truck is running fine and I wouldn't know anything was wrong but for the light on the dash. Parts guy reset the light but it came back on as soon as I pulled out of the parking lot. I don't have a service manual for this vehicle yet, so I'm not sure where to begin. The parts guy said something about running some type of cleaner through the gas tank but that didn't sound like it would be a likely fix so I really didn't pay much attention to him. Can anyone help me figure out what to do first? Thank you very much

#2 ImperialCrown

  • Supporters
  • Others:Forum Leader
  • 11,780 posts

Posted January 23, 2009 at 03:44 am

There is a TSB #18-027-07 for erroneous EGR codes that involves reprogramming the PCM/TCM for trucks built before Feb 15 2007. It's also entirely possible that the fault code is really a defective EGR, but the flash is where I would start. It should be covered under the 8/80 warranty outside of diagnostics that may be determined to be necessary.


Home · Cars · Engines · Repairs · People
Tool and Car Reviews · News

Please read the terms of use and privacy policy. We are not affiliated with Chrysler Group, makers of cars, minivans, trucks, and Mopar (TM) parts. We make no guarantees regarding validity or applicability of information, opinions, or advice. Posts may be edited and used in other parts of allpar.com and affiliated Mopar (Dodge, Chrysler, etc) car related sites. We have the right to remove or modify any message, and to ban or suspend any user without notice. Logos and site-specific information copyright © 2001-2013 Allpar LLC; Chrysler PR materials remain property of Chrysler Group.