Tacoma Regular Cab 4WD V6-3.4L (5VZ-FE) (1997)
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Headlamp Reminder Indicator: Initial Inspection and Diagnostic Overview
LIGHT-ON WARNING SYSTEM INSPECTION
1. INSPECT DOOR COURTESY SWITCH
See: Door Switch/Testing and Inspection
2. 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 as specified, replace the relay.
