TCS Off Switch Inspection

WARNING: This page is about a different car, the 2017 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.

Remove the TCS OFF switch. (See TCS OFF SWITCH REMOVAL/INSTALLATION .)

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

If not as indicated in the table, replace the TCS OFF switch.

Fig 1: TCS OFF Switch Connector Terminals
Courtesy of MAZDA MOTORS CORP.

TCS OFF switch specification

Terminal	Test condition	Resistance (ohms)
B-C	Switch pressed	0
B-C	Switch released	1139.99-1163.01

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