Tire Pressure Monitoring System Set Switch Inspection

WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Remove the TPMS set switch. (See TIRE PRESSURE MONITORING SYSTEM SET SWITCH REMOVAL/INSTALLATION .)

Verify that the resistance between the TPMS set switch terminals B and C is as indicated in the table.

If not as indicated in the table, replace the TPMS set switch.

Fig 1: TPMS Set Switch Circuit Diagram

Courtesy of MAZDA MOTORS CORP.

TPMS SET SWITCH SPECIFICATION

Terminal	Test condition	Resistance (ohms)
B-C	Switch pressed	187.61-191.39
B-C	Switch released	1139.99-1163.01

Apply battery voltage to TPMS set switch terminal J, and connect terminal I to ground.
Verify that the LED illuminates.
- If there is any malfunction, replace the TPMS set switch.