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TPMS DIAGNOSTIC INFORMATION – Honda Accord 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 Honda Accord is manufactured with an indirect and a direct TPMS system, depending on the year. Direct TPMS has 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). The indirect TPMS system does not have TPMS sensors in the wheel; TPMS is measured by wheel speed through the ABS system.
The Honda Accord’s direct TPMS OBD relearn is unique compared to other OBD relearns. When activating sensors, start with the left front sensor, then activate the sensors counter-clockwise. The order to activate the TPMS sensors during an OBD relearn is left front, left rear, right rear and left front sensor.
As cited in the TIA TPMS relearn chart, for Direct TPMS Honda systems 2008-2012, “a properly formatted TPMS scan tool is required to learn new sensor IDs when replacing sensors. After sensor ID’s are registered to the vehicle, the [TPMS] MIL (malfunction indicator light) will flash until the vehicle is driven and the sensor ID’s are received by the vehicle. This process can take 1-10 miles of continuous driving.”
For direct TPMS systems on the Honda Accord for years 2008-2012, a TPMS relearn is recommended when replacing a sensor. However, for indirect TPMS systems on the Honda Accord for years 2013-2016, a TPMS re-calibration is recommended when changing air pressure, rotating tires and replacing a tire or TPMS sensor.
Use the VT56 to retrieve Honda 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 Honda DTC TPMS information to diagnose and service the TPMS issues determined.
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