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Old 08-05-2014, 08:09 PM
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Question about PCM Software Ver.

I recently have had a number of software updates done when I had my front skid plate put back on. I am not sure that I got the very latest PCM version that is included in TSB 18-018-14 REV. C. My print out from the dealer shows PCM updated from 68184940AM to AQ#, but no TSB# is associated with this update.

So my question is, if anyone has had TSB 18-018-14 REV. C done at the dealer can they tell me what version the PCM was updated with.

The reason I would like to know is that after getting the updates I got fault code P20EE-00 while driving down the freeway and 18-018-14 REV. C is supposed to address this code. After driving some more the MIL went out on its own, couldn't get appt. with dealer till Friday.
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Old 08-06-2014, 09:19 PM
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Re: Question about PCM Software Ver.

TSB 18-018-14 REV. C. My print out from the dealer shows PCM updated to 68184940AQ from to AM. I also got a code after the update that the update was supposed to address. In my case, it was P20E9-00, Reductant pressure too high. The dealer diesel tech told me that Rev C turned on some status/sensor monitors that were not activated in the previous revision. Clearing the code did not fix the problem, because the DEF supply hose was pinched under right rear airbag.


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