Ses code p203a

Guys,

Threw this code yesterday, P203A, says it is the Reductant Level Sensor Circuit.

Won't reset.

Any ideas?

Just had the recall work (EGR) and 13k oil service with DEF refill a week ago.

This morning went out and started it up and SES code has cleared.

Nada.

I doubt it was anything critical to begin with, something obvioulsy related to the DEF system, I assume one of the level sensors acting up.

I guess nobody else has seen this?

I keep getting the SES, comes on for maybe a day or two, then goes away. It doesn't register any specific fault on the OBC but my garmin keeps showing the P203A error code which hasn't reset.

Again, no issues with the vehicle or performance, just the annoying SES about every month or so.

I'm thinking it might be the transfer of fluid from the passive to the active tank is somehow triggering this.

I'm up to almost 45k miles now, with next service due at 50k. I'll have to make a big decision whether I'm going do the extended warranty & maintenance or not.

I'm leaning towards going for the additional 50k miles and two more years. I'm at year 3 with 45k so 6 years and 100k fits quite nicely with the amount of miles i'm putting on my D.

Anybody else sprung for the extended warranty and/or maintenance plan???

I am at 38k miles and I will get 3yr/100 miles warranty. No plan on getting maintenance though. I am waiting if prices may go down.