Help? Code U02A3?

[PToombs]

Hi guys, '17 2500, I have a recurring code U02A3. I clear it and it comes back shortly. My AlfaOBD is telling me it's "lost communication with left center console intrusion sensor". What the heck is that? Any tips or help is appreciated!

 

[MarkEagleUSA]

A Google search reveals this :

U02A3 RAM Code - Lost Communication With Particulate Matter Sensor Module
Read more: https://www.autocodes.com/u02a3_ram.html

 

[PToombs]

Crap! I just replaced that sensor. I never thought of google searching it, Thanks Mark. Guess I'll be tearing harnesses apart.

 

[Ozymandias]

It does NOT mean that this sensor is bad, can be anything along the way.

Please read this link
https://www.dtcdecode.com/RAM/U02A3

And also further reading the links at the bottom of the document.

Especially this, might all you need is an update.

https://static.nhtsa.gov/odi/tsbs/2022/MC-10225265-9999.pdf

That's why I always insist to keep the software up to date on newer vehicles.