3.1.2. Troubleshooting, TPMS valve reading problems
If your tool does not detect one or more TPMS valves, carefully follow this process in order
to diagnose the problem:
1) The vehicle has no TPMS valve even if a metal stem is present. There are non-
TPMS valves that look like TPMS valves. This is the case with Schrader valves.
a. Check for the presence of TPMS valves on the vehicle. You can also use
your tool to check the type of TPMS valve (direct or indirect) fitted on
your vehicle. Caution, indirect TPMS systems operate without sensors
mounted in the tires.
b. If the vehicle you are checking was not originally fitted with TPMS
valves, your tool will tell you clearly through the message "Indirect
TPMS".
2) The sensor or TPMS ECU may be damaged or defective.
a. Check each element to eliminate the possible origin of the problem.
3) The TPMS valve may respond only to its own frequency and not be designed
to be triggered by another frequency.
a. Check the communication frequency of the vehicle's TPMS valves. This
frequency is generally 433 MHz for Europe and 315 MHz for the United
States and Japan. Make sure the vehicle is not a vehicle imported from
one of these countries since it may be set to a different frequency.
4) The TPMS valve fitted on the tire is not the correct P/N
a. Each vehicle model – even each version – can be fitted with a different
make or model of TPMS valve. Make sure that the vehicle is fitted with
the correct TPMS sensor P/N.
5) The tool may require a software update.
a. If all the previous points have been checked, you might have a vehicle
that is not yet in the TPMS tool's database. In this case simply update
your tool using the WebVT software. Refer to Updating on page 100.
6) The tool is damaged or defective.
a. If all the previous points have been checked, the tool might be damaged
or defective. In this case contact your local dealer.
3.2. Updating the tool’s firmware
3.2.1. Updating the TPMS tool
You must update the tool as soon as:
➢ a new model or a new generation of vehicle arrives on the market
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