Tacoma Extra Cab 2WD L4-2.4L (2RZ-FE) (1999)
Audible Warning Device: Testing and Inspection
INSPECT INTEGRATION RELAY OPERATION
a. Connect the positive (+) lead from the battery to terminal 12 and the negative (-) lead to terminal 7.
b. Connect the positive (+) lead from the battery to terminal 4 and the negative (-) lead to terminal 5.
c. Check that the buzzer does not sound when terminal 4 or 5 is connected to the positive (+) lead.
d. Check that the buzzer does not sound when disconnecting terminal 4 or 5.
if operation is not a specified ,replace the relay.