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TPMS diagnostic information – Subaru Forester 2008-2019
After the TREAD Act was mandated in 2007, all vehicles manufactured in the United States beginning in 2008, must be installed with direct or indirect TPMS systems.
The Subaru Forester is manufactured with a direct TPMS system, which means TPMS sensors are installed in the wheel. If one or more tires indicate low tire pressure, the TPMS sensors will transfer the information to the vehicle’s ECU. An indicator light (low-line TPMS system) or each tire pressure will show on the dash (high-line TPMS system).
When a sensor is replaced for one or more wheels and/or tires have been rotated on a Subaru Forrester, a TPMS relearn is recommended to transfer the new TPMS sensor ID’s to the vehicle’s ECU, according to the TIA relearn chart.
The video below displays an OBD relearn on a Toyota vehicle, but the same relearn procedure steps will work with a Subaru Forester.
The video below demonstrates an OBD relearn a Hyundai Azera, but the same procedure will work for most Subaru Forester years. To check to see if the QUICKSET is compatible for your vehicle, check the compatibility chart in the QUICKSET PRODUCT PAGE.
Before you begin:
Be sure to have the TPMS sensor ID information for the sensors in the wheels that are not currently registered with the vehicle. Use a TPMS activation or trigger tool that displays the sensor ID’s on the screen, such as a VT31 or VT36 to read the TPMS sensor ID’s, then be sure to write them down.
Next, make sure the ATQUICKSET software is installed on your PC. Connect the tool to your PC using the USB cable that comes with the kit.
An OBD relearn is required during the following circumstances to register new or existing TPMS sensor ID’s to the appropriate locations:
If tires are rotated, the performance and function of TPMS are not affected, but it is recommended to perform a TPMS reset to transfer sensor ID’s because the tire position will not display in the Subaru Select Monitor correctly.
If the ignition switch is turned off during the relearn procedure, or the relearn procedure is not performed within five minutes, registration mode will be cancelled and must be performed over again.
Use the VT56 to retrieve and clear Subaru TPMS DTC codes by selecting the “Service” icon. After selecting the Make, Model, and Year, select the DTC code icon. Use the OBDII module to retrieve the Subaru DTC TPMS information to diagnose and service the TPMS issues determined.
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