T100 Regular Cab Pickup 2WD L4-2693cc 2.7L DOHC MFI (1998)
Parking Brake Warning Switch: Testing and Inspection
INSPECT PARKING BRAKE SWITCH
a. Check that there is continuity between terminals with the switch ON (switch pin released).
b. Check that there is no continuity between terminals with the switch OFF(switch pin pushed in).
If operation is not as specified, replace the switch.