Omitec OmiDetect 100, User Manual

Page: 7 / 29

Introduction
5
Activating Sensors
To activate, or “wake up,” a TPM sensor to test its ability to sense and
transmit tire pressure and sensor ID information to the TPM control
module, you must use one of three different methods, depending on the
type/brand of sensor:
Send the sensor a 125 KHz “modulated” wave command signal
( ). (OmiDetect is capable of generating a variety
of modulated waveforms.)
Send the sensor a 125 KHz “continuous” wave command signal
( ).
Position the magnetic tool specified by the OEM in close
proximity to the sensor. The tool is provided with the vehicle or
is available from the OEM.
Most of the current-generation sensors can be activated using either the
first or the second method. The OmiDetect 100 uses only ‘modulated’
wave command signals to test valves.
Once a sensor is activated, OmiDetect 100 will listen for the appropriate
response signal. If it detects a valid signal, it will provide both visual and
audible confirmation and indicate its frequency (either 315 MHz or 434
MHz).
Note: Older generation sensors may not have the electronics required to
activate them using these methods.
Reprogramming
Each TPM sensor has a unique internal identification code. With most
current generation TPM systems, anytime you rotate a vehicle’s tires or
replace one or more TPM sensors, you must “reset” (reprogram) the TPM
system’s control module by placing it in the “learn” mode and activating
each sensor so the control module can identify the new sensor locations.
Refer to the Omitec TPM System Quick Reference Guide provided with
your OmiDetect system for instructions on how to reset the TPM system
of a specific vehicle make and model.
IMPORTANT: If you do not reprogram the control module, it will
continue to report the correct tire pressures, but will assign them to
the wrong wheel locations.