LED illumination inspection

Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-G 2.5] .)
Remove the BSM switch. (See CLUSTER SWITCH REMOVAL/INSTALLATION .)
Apply battery positive voltage to BSM switch terminal J, and connect terminal I to ground.

Fig 1: Applying Battery Positive Voltage To BSM Switch Terminal J
Courtesy of MAZDA MOTORS CORP.
Verify that the LED illuminates.
- If there is any malfunction, replace the cluster switch. (See CLUSTER SWITCH REMOVAL/INSTALLATION .)