Tire Pressure Monitoring System Set Switch Inspection

WARNING: This page is about a different car, the 2014 Mazda 6. 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: Tire Pressure Monitoring System Set Switch - Circuit Diagram
Courtesy of MAZDA MOTORS CORP.

TPMS SET SWITCH SPECIFICATION

Terminal	Test condition	Resistance (ohms)
B-C	TPMS set switch pressed	187.61-191.39
B-C	All switches 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.