Direct TPMS uses direct tire pressure sensors on each wheel to measure tire pressure while indirect TPMS does not use sensors. Indirect TPMS frequently use the anti-lock brake system (ABS) speed sensors to calculate pressure.
Direct TPMS uses direct tire pressure sensors on each wheel to measure tire pressure while indirect TPMS does not use sensors. Indirect TPMS frequently use the anti-lock brake system (ABS) speed sensors to calculate pressure.