BE–140 BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM Ignition Switch Circuit CIRCUIT DESCRIPTION When the ignition switch is turned to the ACC position, battery positive voltage is applied to the terminal ACC of the ECU. Also, if the ignition switch is turned to the ON position, battery voltage is applied to the terminals ACC and IG of the ECU. When the battery positive voltage is applied to the terminal ACC of the ECU while the theft deterrent system is activated, the warning stops. Furthermore, power supplied from the terminals ACC and IG of the ECU is used as power for the door courtesy switch, and position switch, etc. WIRING DIAGRAM Ignition Switch J/B No.1 T8 Theft Deterrent and Door Lock ECU 5 P-L 8 2 W 4 4 CIG L-R ACC 1J 1E 1B 1J 7 8 W 5 17 4 B-Y ECU-IG B-R IG 1J 1E 7 2 AM1 2 W 2 ALT 2A B Battery N12778