Question about 2007 Dodge Ram Truck

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My 2007 Dodge ram 1500 with hemi has 2 codes po524 and po406 are they related

Seems that my mileage is rapidly going down down down. It seems that that that check eng. light came on after I changed the batt. and oil. Now I'm getting a red lighting bolt sign light on dash as well. what's going on???

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  • Dodge Master
  • 17,970 Answers

In both cases, there is a software update available for this condition. It involves having the dealer connector their StarScan tool to your truck and reprogramming the PCM.

DTC P0406 - EGR Sensor "A" circuit "High"
There is updated software available for your PCM that will correct this code if your vehicle was built prior to mid February 07. If it was built after that, then the EGR valve will need replacing (this is not unusual). Keep in mind that could be time for a new valve, but you dont will need to change the tube, but new gaskets are a good idea.

DTC P0524 - Oil Pressure Too Low Oil pressure sending unit (sensor) voltage input above the maximum acceptaple voltage.
If the software is up to date, then have the oil pressure sensing unit must be replaced.

Additionally, check this TSB SUPERSEDES TECHNICAL SERVICE BULLETIN 18-044-07, DATED OCTOBER 12, 2007, WHICH SHOULD BE REMOVED FROM YOUR FILES. ALL
REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE THE ADDITION OF YEARS, MODELS AND CLEAN DATES.
THE StarSCAN FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET.
StarSCAN SOFTWARE LEVEL MUST BE AT RELEASE 8.04 OR HIGHER FOR THIS BULLETIN.
StarMOBILE STANDALONE MODE OR StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: MIL Illumination Due To Diagnostic Trouble Code P0524 - Engine Oil Pressure Too Low
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control
Module (PCM) with new software.
MODELS:
**2007** - 2008 (DR/DH/DC/D1) Ram Truck (1500/2500/3500)
**2007** - 2008 (HB / HG) Durango / Aspen
**2007** - 2008 (LX) 300 / Magnum / Charger
**2007 (LE) 300C/300 Touring (International Markets)**
**2007 (L2) 300 (China)**
**2007** - 2008 (WK) Grand Cherokee
**2007 - 2008 (WH) Grand Cherokee (International Markets)**
**2007** - 2008 (XK) Commander
**2007 - 2008 (XH) Commander (International Markets)**
NUMBER: 18-003-08
GROUP: Vehicle Performance
DATE: January 19, 2008
NOTE: This bulletin applies to the above listed vehicles equipped with a 5.7L engine with MDS (sales code EZB) built before the following dates:
(HB/HG) built before August 15, 2007 (MDH 0814XX)
(LX) built before September 14, 2007 (MDH 0914XX)
(DR) built before August 16, 2007 (MDH 0816XX)
**(WK/WH/XK/XH) built before January 8, 2008 (MDH 0108XX)**
SYMPTOM/CONDITION:
The vehicle operator may experience a Malfunction Indicator Lamp (MIL) illumination due to the following Diagnostic Trouble Code (DTC): P0524 - Engine Oil Pressure Too Low

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day

Posted on Feb 14, 2012

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motor1258
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SOURCE: code po406 came up on my 2007 dodge ram 1500 hemi

I know your probably a little apprehensive, but stop at a dealer and have them check it. It's EGR related and should fall under emissions warranty if your within the perimeters, as well as there is mention of a computer update related to that.

Posted on Mar 19, 2010

  • 83 Answers

SOURCE: 2005 Ram 1500 4wd HEMI PO406 - EGR

Hey greenlee99, your best bet would be to grab one these manuals so that you have pictures and diagrams along with step by step instructions. It will tell you what tools and parts you need. Can't go wrong with having it.

Posted on Feb 15, 2010

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