TPMS roll out opens a new window of service opportunity by ProQuest

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Indirect TPMS technology "piggybacks" on a vehicle's ABS, using it to calculate different wheel speeds as detected by the wheel-speed sensors. Theoretically, as tire pressure drops, so does the diameter of the tire, resulting in increased rotation speed. By comparing wheel speeds against one another with the right logic, a determination can be made about low tire pressure.

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