TST TM-507 - Common Questions

COMMON QUESTIONS
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TST-Doc-507FT-RV WSD-C Manual-(D)
● Why does my display sometimes "drop" sensor data from a tire position?
1) If you have a vehicle(s) that exceeds 30' in length, you may need a repeater to
amplify the sensor signals from the tires to the display. This issue is not limited
to the rear tires on a vehicle. An RV with a metal shell also needs a repeater.
Pleaseensurethattherepeater/signalboosterthatcomeswithyourTST507kit
hasbeenproperlyconnectedtoapositivepowersourceandagoodground
source.
2) Be aware that an indoor/outdoor thermometer with an external temperature
sensor may interfere with the TST TPMS. Temporarily remove all the batteries in
the display AND exterior sensor and see if the problem is corrected. A
thermometer with a higher frequency (915 MHZ) may be required. Atomic
clocks can also cause interference with the sensors.
● What do I do if my sensor is not reading?
1) Check the battery in the sensor. If you have a voltmeter, be sure the battery is
reading over 3 volts. If not, replace with a new battery. We recommend testing
a new battery as well to be sure it is above the 3-volt minimum parameter.
2) Unscrew the sensor off the valve stem and then reinstall it. The sensors are
pressure sensitive and will reset once reinstalled.
3) If it still does not read, try placing a working sensor from another tire on that
valve stem. Keep in mind, the sensor you just moved will continue to read in its
original tire position on the display. If that sensor does not read normally, you
may have a valve stem problem. Try unscrewing the valve core as described
abovein the Troubleshooting Tips section.If the switched sensor reads
normally, it may be a sensor issue. Call 770-889-9102 or go to the TST website
at for more troubleshooting help.www.TSTtruck.com
4) If your sensor is not transmitting data to the display, try recoding the sensor to
the same tire position. See Automatic Code Learning (Option #1) on page 4.