BE–138 BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM 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 0.2 sec. intervals. This switches the taillight control relay on and off, thus flashing the taillights (See the wiring diagram below). 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: (1) The front LH or RH door is unlocked with a key. (2) The ignition switch is turned to ACC or ON position. (3) Approximately 1 minute elapses. WIRING DIAGRAM T9 Theft Deterrent and Door Lock ECU J/B No.1 2 Taillight Control Relay 1 2 11 W-L 1B G-W 15 TAIL IF2 G-W 23 TAIL 16 G 5 3 1C G-W Light Control Switch Light Failure Sensor LG 1 LG Tail Light 5 5 W-B W-B W-B 2 POWER 2 W 2 ALT 2A B Battery N12777