BE-147 BODY ELECTRICAL SYSTEM – THEFT DETERRENT AND DOOR LOCK CONTROL SYSTEM Door Courtesy Switch Circuit CIRCUIT DESCRIPTION The door courtesy switch goes on when the door is opened and goes off when the door is closed. WIRING DIAGRAM T9 Theft Deterrent and Door Lock ECU 12 V Door Courtesy Switch LH W-B 2 3 R-B 15 IC2 R-B 3 IF2 R-B DSWD 7 BI 12 V Door Courtesy Switch RH W-B 2 3 R-L 4 IF3 R-L DSWP 19 IG N06666 INSPECTION PROCEDURE 1 Check operation of open door warning light. C Check that open door warning light comes on when each door is opened, and goes off when all doors are closed. OK NG Check and repair open door warning light circuit 2 Check for open in harness and connector between theft deterrent and door lock ECU and door courtesy switch (See page IN-30). NG OK Check and replace theft deterrent ECU. *1. Repair or replace harness or connector. *1: When there is a malfunction that the theft deterrent system cannot be set, proceed to the next numbered circuit inspection shown on matrix chart (See page BE-123).