M6s-111

[Lemad72]

Anyone ever came across the code u02a3

 

[TheOldHokie]

U codes indicate network communications faults. That code is lost communication with particulate matter sensor. The WSM should identify possible causes. Off the top of my head a bad sensor or wiring connection would seem likely.

Dan

 

[lugbolt]

U codes indicate network communications faults. That code is lost communication with particulate matter sensor. The WSM should identify possible causes. Off the top of my head a bad sensor or wiring connection would seem likely.

Dan

spot on
I've had this happen. THe wires going into the muffler assembly were ate off by critters on the one I dealt with. Luckly replacing the differential pressure sensor also came with the wire I needed, easy fix in our case