Avalon XL V6-3.0L (1MZ-FE) (1997)
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Tail Lamp Relay: Component Tests and General Diagnostics
Symptom Chart
Matrix Chart Of Problem Symptoms / Theft Deterrent System
HINT: Troubleshooting of the theft deterrent system is based on the premise that the door lock control system is operating normally. Accordingly,
before troubleshooting the theft deterrent system, first make certain that the door lock control system is operating normally.
Taillight Control Relay Circuit
TAILLIGHT CONTROL RELAY CIRCUIT
CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approximately 0.4 sec. intervals. This switches the
taillight control relay ON and OFF, thus flashing the taillights (See the wiring diagram).
In this condition, if any of the following operations is done, the Tr in the ECU goes OFF and the taillight control relay switches OFF, thus stopping the
taillights flashing:
