View Full Version : HELP getting error message from odb port. Can't get emissions test done

08-05-2016, 07:31 PM
I have an 03 sprinter 2500 and when I take it to be tested they say there is no communication. On my Odb tester it says

Failed to read emissions monitor status no ODBII response

Right now can't drive it due to expired plates

08-05-2016, 07:40 PM
Broken/missing pin in the OBD socket??
Loose connector on the ECU? (highly unlikely)

"email S test" ?? What state (or country) are you in?


Aqua Puttana
08-05-2016, 07:56 PM
Another possible guess is interference by any added electronics. There is a history of tagged on equipment stopping ODBII port communication even though the ECM aka ECU and other modules are able to communicate enough to operate.


08-05-2016, 08:03 PM
This might be helpful

08-05-2016, 08:25 PM
"email S test" ?? What state (or country) are you in?
I'm guessing that's what happens when you mis-type 'emissions' and a spell-checker further mutilates it.

08-05-2016, 08:39 PM
Ugh didn't see typo. I'm in Cleveland Ohio

08-06-2016, 02:15 AM
When I first got my van it did not have a radio or a cigarette lighter. Maybe when these were added they tapped into something. I will disconnect that stuff and see if anything changes.

08-10-2016, 07:36 PM
My ODBII port was flaky as a result of bad contacts in the fuse box under the steering column. You may want to clean the contacts (there are a lot of them). I couldn't get my DAD unit to work with it. I swapped out the Fuse Box with a new one, finding corrosion on the contacts of the one I removed. I used spray contact cleaner on all the connectors that plugged into the new Fuse Box.