Dorman TPMS will not train, need help troubshooting - Page 3 -
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post #31 of 34 Old 06-05-2013, 11:29 AM
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I just called them with the tech support number on this page

I told them about this thread, specifically if they are dormant on the shelves and how they retrain. Then I asked if the batteries could die on the shelves if they're dormant, below is their response.

"They are in "sleep mode" when we ship to retailers and the only thing that takes them out is being pressurized. After being pressurized they should train like factory OEM"

TJSWJ, it's possible the two you have that trained without pressure were returned by someone else or have problems.

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post #32 of 34 Old 06-05-2013, 11:54 AM
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Thats my point exactly. If they are shipped in "sleep mode", why was the OP (who received 2 sensors fresh from doorman) able to train them right out of the box? When he pulled them out of the box they should have needed to be pressurized in order to take them out of "sleep mode" and activate them. He merly took them out of the box, held them in his hand and put a magnet to them and they trained. That tells me that they werent shipped in "sleep mode", they were shipped as active sensors. Which would in turn explain why the OP and I have had problems with bad sensors straight out of the box. The batteries were dead.

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post #33 of 34 Old 06-05-2013, 12:24 PM
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Something for the OP to ask Dorman.. I'm just relaying what they just told me on the phone...

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post #34 of 34 Old 06-07-2013, 08:13 PM Thread Starter
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OK guys, to be more specific, the Dorman tech I spoke with said they had some issues with a batch of sensors not going into sleep mode.
Basically they were active just sitting on the shelves, allowing the batteries to die.
This is why they offered to send me two replacements.
As for training out of the box, placing a magnet on the sensor wakes it up, I lightly tapped the new sensor with the magnet for about 30 seconds and that seemed to wake it up.
I can verify it did go back to sleep mode after 10 minutes, as I was not able to leave for the tire shop right away after it trained.
When I started the Jeep to go to the tire shop, it said the sensor was missing again, all I had to do was put the magnet near it right there in the seat, it began transmitting and the EVIC picked it up again (showing 0 pressure).
Also verified the sensor transmitting by magnet activation via the EVIC tpms diagnostic screen, without the magnet it was not transmitting, placing it on the magnet activated it.
The Dorman sensors have pressure, magnetic, and motion activation switching for battery conservation.

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