Tech 500
User Guide rev1.0
JUNE 2013
38
APPENDIX D: GLOSSARY
TPMS – Tire Pressure Monitoring Systems, sometimes referred to as RTPMS.
Indirect System – TPM system that uses the ABS wheel sensors.
Direct System – TPM system that has sensors in the wheels that use RF.
LF – Low frequency, usually 125 kHz with respect to TPMS technology.
Continuous Wave – Type of LF signal that wakes Schrader Style Sensors.
Modulated Wave – A “patterned” LF signal that is designed for specific sensors.
UHF – Ultra High Frequency, 315 and 433.92 MHz, what the sensor transmits.
Re-Learn – The process of registering the sensor ID’s to the car.
Hi-Line – Type of car that has wheel arch initiators and usually a graphic display.
Lo-Line – Type of car that requires a tool to repair and only has warning light.
Wi-Fi – Wireless Network
Bluetooth – Wireless communication
Induction Charger – Wireless Charger by using the option fixture
