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                                                                                                                    DI-557
                                         DIAGNOSTICS          -       THEFT DETERRENT SYSTEM
                                                                                                                      DI075-08




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



              Door Courtesy                  Driver Side J/B No.1                                    Theft Deterrent ECU
              Switch Front LH
                                               7              1                         18       4
                                 R-G                                       LG-R             LG-R
                                              1S              1G                        IG2      T3 DSWD
                           1


               Slide Door Courtesy
               Switch RH                                          J5
                                        3                                                19         1
                             R-Y                   R-Y                       R-Y            R-Y
                                       II4                                              IG2        T3      CTY
                           1                             A               A
                                              Junction            A
                                              Connector
               Slide Door Courtesy
               Switch LH
                                        18
                              R-Y                  R-Y
                           1           IC2


               Door Courtesy                                      J/B No.3
               Switch Front RH
                                         3               3
                           1 R-G       II2
                                                 R-G
                                                         3B
                                                                             8           13         5
                                                                                R-G         R-G
                                                                             3C         IG2        T3 DSWP




                                                                                                                        I19492




2001 SIENNA (RM787U)

                                                                             Author :             Date :              711
DI-558
                                   DIAGNOSTICS   -   THEFT DETERRENT SYSTEM

INSPECTION PROCEDURE

   1     Check operation of open door warning light.

CHECK:
Check that open door warning light comes ON when each door is opened, and goes OFF when all doors
are closed.

                                          NG         Check and repair open door warning light cir-
                                                     cuit.


  OK



   2     Check for open in harness and connector between theft deterrent ECU and door
         courtesy switch (See page IN-31 ).


                                          NG         Repair or replace harness or connector.


  OK



  Check and replace theft deterrent ECU.*1


                                        *1: When there is a malfunction that prevents the theft deterrent
                                        system from being set, proceed to the next numbered circuit in-
                                        spection shown in matrix chart (See page DI-532 ).




2001 SIENNA (RM787U)

                                                           Author :             Date :              712

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