So, I have a question for those more knowledgeable than I am. I noticed my wifes 2009 Outlander xls had cracks in the outer nut on the TPMS / Valve stem. Not wanting to wake up to a flat tire at 5:00am, I was proactive and took it to the only place open at noon on a Sunday, Firestone service. I drop it off, no lights or abnormal messages are displayed. So about $110 later the call me and tell me it's fixed.

I get in and start the car, notice the "Service Engine Soon" light is on. I ask the people at Firestone to look at it for me, the connect to it and get U0000 and P0000. The guy says, ooh that's a dealership only code. You need to take it there, but it's probably just the gas cap. Not believing that to be too likely, I was going to connect my scanner when I get home. But on the way the home the Tire sensor alarm triggers. So now I have indicators, Tire sensor and Service engine soon. I arrive home and plug in my trusty old Actron cheepo and it keeps giving the "Failed to Link" notice. It will power up but will not communicate. I plug it into my chevy colorado and it communicates just fine.

So remembering when I used to change the TPMS sensors at work many years ago, you needed to connect through the OBD2 port for the setup process.

Could they have damage the BCM/PCM/ECM when pairing the sensor?

 

It sure looks that way...thats a reall bummer..if the dealer can confirm they screwed up..you gotta go back after Firestone Service...some places really mess up more than they fix...let us know what happens...Best of Luck

 

I looked up P0000 online and it said that means there is no trouble code. (P being power train module)
The U code is user network and I can't seem to find anyone that confirms it but I would expect that means no error too..

I wonder if they failed to link as well and that's just a default message they don't know how to read..

Did you physically inspect the connector? Maybe they pushed in some pins or cracked it or something.

I have had no TPMS sensors at all and it does not set a MIL/CEL at all. You just get the flashing TPMS warning light and the messages on the center dash every 20 minutes or so.

If your going to the dealer anyway I wouldn't do this but if you want to give it a shot yourself pull the negative terminal off the battery for like 30 mins and let everything reset.. The downside is you may loose whatever codes the dealer _might_ be able to get.

I don't think the process for programming tire sensor IDs is capable of causing that kind of a problem though..