Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 05 bcsy ciheadre

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.



Image preview - the first page of the document



>> Download ciheadre documenatation <<

Text preview - extract from the document

                                                                                                                              DI-647
                                                  DIAGNOSTICS      -       BODY CONTROL SYSTEM
                                                                                                                                DI6LN-03




 Headlight relay circuit

CIRCUIT DESCRIPTION
Head light relay will be "ON" by operating the headlight switch. The transistor which activates the taillight
relay has two sorts: one activates directly by the headlight switch for fail safe and the other activates by CPU.
the one that activates by CPU has two systems and prevents the headlight from turning off at the time of
one system trouble in the automatic operation circuit.
WIRING DIAGRAM


                                                                                                                       Body ECU (In-
                                                                                                                       tegration
                                     D8                                                                                Relay)
                                                                 J7                        J/B NO. 3
                                     Diode                       J/C                                                (*1)
                    3                                                                 5                14           11
                          R-W                         R-L                   R-L                           O
                   EB1                                                                3A               3A          113 HRLY
                                1                 2          E             E
                                                                                                                     6
                                        R/B NO. 7                                                                  (*2)
      R-W
                                        5                    3                W-B
          Head light            7                                      7
                          R-B                                                            J1 J/C
                                                                              R-B
                                7                                      7
                                        2                    1                       B         B
                                                 DRL Relay

                                                             Engine Room J/B NO. 2
                                                                                                               R-B
                                                                       HEAD Relay
          FL MAIN                                                                                  3
                    B-L                                                                           2G
                                                  MAIN             1                  2
                           W    3                                                                  8
                                                                                                     O
                                2B                                                                2K
                                             1               2     4                  3
         Battery
                                                                                                              EE

                                                                           Daytime Running
                                                                           Light Relay (Main)


       (*1) w/ Door Lock Control
       (*2) w/o Door Lock Control                                                                                                 I18646




 2001 SIENNA (RM787U)

                                                                                    Author :              Date :                801
DI-648
                                   DIAGNOSTICS   -   BODY CONTROL SYSTEM

INSPECTION PROCEDURE

   1     Check headlight relay (See page BE-17 ).


                                          NG         Replace the headlight relay.


  OK



   2     Check wireharness and connector between headlight relay and Body ECU, bat-
         tery and headlight relay (See page IN-31 ).


                                          NG         Repair or replace wireharness or connector.


  OK



  Proceed to next circuit inspection shown on
  problem symptoms table (See page
  DI-636 ).




2001 SIENNA (RM787U)

                                                            Author :          Date :           802

◦ Jabse Service Manual Search 2026 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo