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                                                                                                                         DI-619
                                               DIAGNOSTICS       -     ENGINE IMMOBILISER SYSTEM
                                                                                                                          DI1KM-06




   DTC               B2791/99 Key Unlock Warning SW OFF Malfunction

CIRCUIT DESCRIPTION
   DTC No.                      DTC Detecting Condition                                            Trouble Area
                S Open circuit in key unlock warning switch circuit.        S Key unlock warning switch
   B2791/99
                S Key unlock warning switch adheres to OFF position.        S Wireharness


WIRING DIAGRAM


                                                                                                                   ECM

                                 Unlock Warning
                                 Switch                                    J6
                                                                                                           23
                       W-B                                 L-B                           L-B
                                                                                                           E9 KSW
                                  2               1                  D       D
                                                                  Junction Connector


                 B
                     J3
                     Junction Connector
                 B

          W-B


                ED




                                                                                                                            I03182




2001 SIENNA (RM787U)

                                                                             Author :                     Date :          773
DI-620
                                 DIAGNOSTICS   -   ENGINE IMMOBILISER SYSTEM

INSPECTION PROCEDURE

   1     Check key unlock warning switch (See page BE-15 ).


                                       NG          Replace key unlock warning switch.


  OK



   2     Check harness and connector between key unlock warning switch and ECM.


                                       NG          Repair or replace the harness or connector.


  OK



  Replace ECM




2001 SIENNA (RM787U)

                                                          Author :             Date :        774



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