Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota 4Runner 1996-2003 Approved SIL techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 024runne di bdcsy bdlsw

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DI-564
                                         DIAGNOSTICS   -   BACK DOOR CONTROL SYSTEM
                                                                                                          DI57L-05




 Back Door Unlock Detection Switch Circuit (w/ Theft Deterrent
 System)

CIRCUIT DESCRIPTION
The door unlock detection switch is built in the door lock motor assembly. This switch is ON when the door
lock knob is in the unlock position and OFF when the lock knob is in the lock position. The ECU detects the
door lock knob conditions is this circuit. It is used as one of the operating conditions for the theft deterrent
system.

WIRING DIAGRAM




                                                            B10                         Back Door ECU
                                                            Back Door Unlock
                                                            Detection Switch
                          3                3                                        20
                                 W-B                 W-B                    L-B
                         BR1              BS1                                      B18 LSWB
                                                             1          4




           W-B




         BH




                                                                                                            I10119




 2002 4RUNNER (RM887U)

                                                                 Author :              Date :               740
                                                                                              DI-565
                                  DIAGNOSTICS   -   BACK DOOR CONTROL SYSTEM

INSPECTION PROCEDURE

  1     Check back door unlock detection switch (See page BE-76 ).


                                         NG         Replace door lock motor.


  OK



  2     Check harness and connector between door unlock detection switch and back
        door ECU (See page IN-28 ).


                                         NG         Repair or replace harness or connector.


  OK



 Proceed to next circuit inspection shown on
 problem symptoms table (See page
 DI-556 ).




2002 4RUNNER (RM887U)

                                                          Author :             Date :          741

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