Master Switch Illumination

Set the window lock switch to the unlock position. Connect the positive (+) lead from the battery to terminal No. 9 and the negative (-) lead to terminal No. 6. See Fig 1. Check that all the illuminations light up.
Set the window lock switch to the lock position, and check that all the passenger's power window switch illuminations go out. See Fig 2.
If operation is not as specified, replace the master switch.

Fig 1: Testing Master Switch Illumination (1 Of 2)

Fig 2: Testing Master Switch Illumination (2 Of 2)