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                                                                                                                      DI-401
                                               DIAGNOSTICS       -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                          DI6MS-03




  DTC                B0110/43                        Short in Side Squib (RH) Circuit

CIRCUIT DESCRIPTION
The side squib (RH) circuit consists of the airbag sensor assembly and side airbag assembly (RH).
It causes the SRS to deploy when the SRS deployment conditions are satisfied.
For details of the function of each component, see OPERATION on page RS-2 .
DTC B0110/43 is recorded when a short is detected in the side squib (RH) circuit.
    DTC No.                      DTC Detecting Condition                                          Trouble Area
                 S Short circuit between SFR+ wire harness and SFR- wire
                                                                           S Side airbag assembly (RH)
                   harness of squib
    B0110/43                                                               S Airbag sensor assembly
                 S Side squib (RH) malfunction
                                                                           S Wire harness
                 S Airbag sensor assembly malfunction


WIRING DIAGRAM




                                                                                                 Airbag Sensor Assembly




               Side Squib (RH)


                                                                                             2
                                              Y-R                           Y-R
                                                               BK1                         C7     SFR+
                                        1


                                                                                            1
                                              Y-G                           Y-G
                                                               BK1                          C7     SFR-
                                        2




                                                                                                                          H16799




2001 SIENNA (RM787U)

                                                                            Author :                     Date :           555
DI-402
                                           DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM

INSPECTION PROCEDURE

    1     Prepare for inspection (See step 1 on page DI-486 ).




    2     Check side squib (RH) circuit.

                                                 PREPARATION:
                                                 Release the airbag activation prevention mechanism of the
                             Airbag              connector (on the airbag sensor assembly side) between the
 Squib (RH)                  Sensor              airbag sensor assembly and the side airbag assembly (RH)
                             Assembly            (See page DI-358 ).
                                                 CHECK:
                                                 For the connector (on the side airbag assembly side) between
                                                 the side airbag assembly (RH) and the airbag sensor assembly,
              SFR-          SFR+                 measure the resistance between SFR+ and SFR-.
                                                 OK:
                                                       Resistance: 1 M or Higher
                     (-)   (+)
 H17215
 H09668                                 H17551



                                                   NG        Repair or replace harness or connector be-
                                                             tween side airbag assembly (RH) and airbag
                                                             sensor assembly.


   OK




2001 SIENNA (RM787U)

                                                                   Author :            Date :            556
                                                                                                         DI-403
                                            DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



  3       Check airbag sensor assembly.

                                                  PREPARATION:
                                                  (a) Connect the connector to the airbag sensor assembly.
                                                  (b) Connect negative (-) terminal cable to the battery, and
                              Airbag
 Squib (RH)                   Sensor                    wait at least for 2 seconds.
                              Assembly            CHECK:
                                                  (a) Turn the ignition switch to ACC or ON and wait at least for
                                                        20 seconds.
                                                  (b) Clear the DTC stored in memory (See page DI-358 ).
                     ACC      ON                  (c) Turn the ignition switch to LOCK, and wait at least for 20
                                                        seconds.
                      or                          (d) Turn the ignition switch to ACC or ON, and wait at least
                                                        for 20 seconds.
        DLC1
                           DTC B0110/43           (e) Check the DTC (See page DI-358 ).
                                                  OK:
                                                        DTC B0110/43 is not output.
                                                  HINT:
 E1                                               Codes other than code B0110/43 may be output at this time, but
                Tc
H17553
                                                  they are not relevant to this check.
AB0118 AB0119
R13006 H01069                            H17552

                                                    NG        Replace airbag sensor assembly.


  OK




2001 SIENNA (RM787U)

                                                                    Author :            Date :             557
DI-404
                                           DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



   4       Check side squib (RH).

                                                 PREPARATION:
                                                 (a) Turn the ignition switch to LOCK.
                                                 (b) Disconnect negative (-) terminal cable from the battery,
                             Airbag
                             Sensor
                                                       and wait at least for 90 seconds.
 Squib (RH)
                             Assembly            (c) Connect the side airbag assembly (RH) connector.
                                                 (d) Connect negative (-) terminal cable to the battery, and
                                                       wait at least for 2 seconds.
                                                 CHECK:
                      ACC      ON                (a) Turn the ignition switch to LOOK, and wait at least for 20
                                                       second.
                      or                         (b) Turn the ignition switch to ACC or ON, and wait at least
                                                       for 20 seconds.
         DLC1               DTC B0110/43         (c) Clear the DTC stored in memory (See page DI-358 ).
                                                 (d) Turn the ignition switch to LOCK, and wait at least for 20
                                                       seconds.
                                                 (e) Turn the ignition switch to ACC or ON, and wait at least
   E1            Tc                                    for 20 seconds.
                                                 (f)   Check the DTC (See page DI-358 ).
 H17217
 AB0118 AB0119
 R13006 H01069                          H17554   OK:
                                                       DTC B0110/43 is not output.
                                                 HINT:
                                                 Codes other than code B0110/43 may be output at this time, but
                                                 they are not relevant to this check.

                                                   NG        Replace side airbag assembly (RH).


   OK



  From the results of the above inspection, the malfunctioning part can now be considered normal.
  To make sure of this, use the simulation method to check.




2001 SIENNA (RM787U)

                                                                   Author :            Date :             558



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