Bosch TPA 300 User Manual page 15

1.7. S
ENSOR READING PROBLEMS
If you encounter problems reading sensors, please use the troubleshooting guide below.
= Trigger sensor
TPMS sensor reading problems – Troubleshooting guide
1) The vehicle has no TPMS sensors even if a metal stem is present. For example,
Schrader valves can look the same as TPMS valves.
➔ Check for the presence of TPMS sensors on the vehicle. You can also use your
TPMS tool to check the type of TPMS valve (direct or indirect) mounted on your
vehicle. Caution, indirect TPMS systems operate without sensors mounted in
the tires.
➔ If the vehicle you are checking was not originally fitted with TPMS sensors,
your tool will tell you clearly through the message "Indirect TPMS".
2) The TPMS sensor or ECU (TPMS computing unit) may be damaged or defective.
➔ Check all these elements separately in order to eliminate the possible origin of
the problem.
3) The TPMS sensor only responds to a certain frequency.
➔ Check the communication frequency of the vehicle's TPMS sensors. This 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 another region since it may
be set to a different frequency.
UM-BTPA1-6
The tool has not detected a sensor. Try again.
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TPA 300 user guide
= change
selected
wheel
User guide BOSCH TPA 300