V1.2 TECH550PRO
Page 15
June 2022
TECH550PRO USER GUIDE
R
ELEARNS
A TPMS relearn is the process in which TPMS sensor IDs are stored or written to the ECM of the vehicle. There are three
categories of TPMS relearns for a Direct TPMS System:
Stationary
•
Auto (Drive)
•
OBDII Connect
•
Indirect (Vehicles have no sensors)
Your TECH550PRO tool will display the relearn process right on the screen of what is available to use for that specific
vehicle. The tool will also list the Tire Industry Association (TIA) Relearn Process Reference number for cross-reference to
the TIA TPMS Relearn Chart. Bartec recommends performing a TPMS relearn any time a vehicles’ tires are removed.
S
TATIONARY
R
ELEARNS
:
Stationary Relearns use the vehicle’s on-board TPMS system to listen for transmissions from TPMS sensors while the
vehicle is in “Learn Mode”. This is usually achieved through a series of actions performed on the vehicle to place it into
this mode. Once the vehicle is in Learn Mode, use your PRO Series tool to activate the sensors. The vehicle will listen for
the sensor IDs and assign them to the correct wheel positions on the vehicle.
D
RIVE
R
ELEARNS
:
Some vehicles can be reset by driving. Refer to the on-screen relearn procedures for details on how far/long to drive. It
can take up to 20 minutes to relearn the sensor IDs.
OBD
R
ELEARNS
:
An OBDII relearn is either a vehicle that requires the OBDII connection to complete the registration of new TPMS sensor
IDs to the vehicle or is optional coverage for Stationary or Auto Relearn vehicles. Connection to a vehicle allows the
Tech550PRO to directly program the vehicle’s ECM with TPMS sensor IDs. OBD can be connected when all sensors are
successfully read and the message “All Sensors OK” is displayed. Please use the “Technical Information” menu and select
“View Vehicle Info” to find the OBD location.
NOTE:
Not all vehicles support OBD vehicle communications modes.
To find out which relearn type is available for a
vehicle, just turn on the tool and select
Relearn. Or refer to the current coverage list at
https://www.bartecusa.com/tpms-tool-
