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                                                                                                                          DI-433
                                              DIAGNOSTICS   -    THEFT DETERRENT SYSTEM
                                                                                                                           DI024-14




Luggage Compartment Door Key Lock and Unlock Switch Circuit

CIRCUIT DESCRIPTION
The luggage compartment door key lock and unlock switch goes ON when the luggage compartment door
key cylinder is turned to the unlock side with the key.

WIRING DIAGRAM
                                                                                               Theft Deterrent
                                                                                               ECU

                                     L3
                                     Luggage Compartment
                                     Door Key Lock and Unlock Switch
                                                             7                             7
                 W-B                                G-Y                         G-Y
                                                            IB1                           T5    LUG
                                 1             2




                BG




                                                                                                                             I13719



INSPECTION PROCEDURE

   1     Check voltage between terminal 1 of luggage compartment door key lock and
         unlock switch connector and body ground.

                                                    PREPARATION:
       LOCK                  2                      (a) Remove the luggage compartment door trim.
        Disconnect                                  (b) Turn the ignition switch ON.
                                                    CHECK:
          (-)          (+)
                                                    Measure voltage between terminal 1 of luggage compartment
                                                    door key lock and unlock switch connector and body ground,
                                                    when the key is turned to the unlock side and not turned.
                                          1         OK:
                                           I02925               Key operation                           Voltage
                                                          Turned to the unlock side                      0V
                                                                  Not turned                   Battery positive voltage




2002 ECHO (RM884U)

                                                                         Author :              Date :                      603
DI-434
                                    DIAGNOSTICS    -   THEFT DETERRENT SYSTEM


                                            OK         Check and replace theft deterrent ECU.*1


  NG




   2     Check luggage compartment door key lock and unlock switch.

                                          PREPARATION:
                           2
           Disconnect                     Disconnect the luggage compartment door key lock and unlock
                                          switch connector.
                                          CHECK:
                                          Check continuity between terminals 1 and 2, when the key is
                                          turned to the unlock side and not turned.
         (+)         (-)                  OK:
                                1
                                               Key operation           Tester connection            Specified condition
                                 I02927
                                              Turned to unlock               1-2                        Continuity
                                                 Not turned                   -                       No continuity


                                            NG         Repair or replace luggage compartment door
                                                       key lock and unlock switch.


  OK



   3     Check harness and connector between theft deterrent ECU and key lock and un-
         lock switch, key lock and unlock switch and body ground (See page IN-29 ).


                                            NG         Repair or replace harness or connector.


  OK



  Check and replace theft deterrent ECU.


                                          *1: When there is a malfunction that the theft deterrent system
                                          cannot be set, proceed to the next numbered circuit inspection
                                          shown in problem symptoms table (See page DI-412 ).




2002 ECHO (RM884U)

                                                                 Author :                  Date :                     604



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