Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Echo 2000-2002 Approved techinfo.toyota.com ileaf 02toyrm 02toypdf 02rmsour 2002 02echorm di rs cib01164

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                                                                                                                       DI-301
                                                    DIAGNOSTICS       -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                        DI1NH-15




  DTC                     B0116/48                        Open in Side Squib (LH) Circuit

CIRCUIT DESCRIPTION
The side squib (LH) circuit consists of the airbag sensor assembly and side airbag assembly (LH).
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 B0116/48 is recorded when an open is detected in the side squib (LH) circuit.
     DTC No.                         DTC Detecting Condition                                           Trouble Area
                     S Open circuit in SFL+ wire harness or SFL- wire harness
                                                                                S Side airbag assembly (LH)
                       of squib
    B0116/48                                                                    S Airbag sensor assembly
                     S Side squib (LH) malfunction
                                                                                S Wire harness
                     S Airbag sensor assembly malfunction


WIRING DIAGRAM
See page DI-297 .

INSPECTION PROCEDURE

    1     Prepare for inspection (See step 1 on page DI-390 ).




    2     Check side squib (LH) circuit.

                                                           CHECK:
                                                           For the connector (on the side airbag assembly side) between
                               Airbag
    Squib (LH)
                                                           the side airbag assembly (LH) and the airbag sensor assembly,
                               Sensor
                               Assembly                    measure the resistance between SFL+ and SFL-.
                                                           OK:
                                                                 Resistance: Below 1 




                          SFL-               SFL+



               (-)       (+)                                   NG         Repair or replace harness or connector be-
                                                                          tween side airbag assembly (LH) and airbag
 H01019
 W03859                                          H01191                   sensor assembly.


   OK




2002 ECHO (RM884U)

                                                                                 Author :                     Date :    471
DI-302
                                             DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



    3        Check airbag sensor assembly.

                                                  PREPARATION:
 Squib (LH)
                                                  (a) Connect the connector to the airbag sensor assembly.
                             Airbag               (b) Using a service wire, connect SFL+ and SFL- of the con-
                             Sensor                     nector (on the side airbag assembly side) between the
                             Assembly
                                                        side airbag assembly (LH) and the airbag sensor assem-
                                                        bly.
                                                  (c) Connect the negative (-) terminal cable to the battery,
                                                        and wait at least 2 seconds.
                                  ON              CHECK:
                                                  (a) Turn the ignition switch to ON and wait at least for 20 se-
 SFL-                 SFL+
                                                        conds.
                                                  (b) Clear the DTC stored in memory (See page DI-239 ).
                                                  (c) Turn the ignition switch to LOCK, and wait at least for 20
          DLC3                DTC B0116/48              seconds.
                                                  (d) Turn the ignition switch to ON and wait at least for 20 se-
                                                        conds.
                                                  (e) Check the DTC (See page DI-239 ).
        CG       Tc                               OK:
 H01017
 W03860 AB0119
 H10600 H01074                           H12854         DTC B0116/48 is not output.
                                                  HINT:
                                                  Codes other than code B0116/48 may be output at this time, but
                                                  they are not relevant to this check.

                                                    NG         Replace airbag sensor assembly.


   OK




2002 ECHO (RM884U)

                                                                     Author :            Date :             472
                                                                                                    DI-303
                                       DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



   4       Check side squib (LH).

                                             PREPARATION:
 Squib (LH)                                  (a) Turn the ignition switch to LOCK.
                                             (b) Disconnect negative (-) terminal cable from the battery,
                     Airbag
                     Sensor                        and wait at least for 90 seconds.
                     Assembly                (c) Connect the side airbag assembly (LH) connector.
                                             (d) Connect the negative (-) terminal cable to the battery,
                                                   and wait at least for 2 seconds.
                                             CHECK:
              ON
                                             (a) Turn the ignition switch to ON and wait at least for 20 se-
                                                   conds.
                                             (b) Clear the DTC stored in memory (See page DI-239 ).
                                             (c) Turn the ignition switch to LOCK, and wait at least for 20
         DLC3         DTC B0116/48                 seconds.
                                             (d) Turn the ignition switch to ON and wait at least for 20 se-
                                                   conds.
                                             (e) Check the DTC (See page DI-239 ).
    CG        Tc                             OK:
H01018
                                                   DTC B0116/48 is not output.
AB0119
H10600   H01074                     H12855   HINT:
                                             Codes other than code B0116/48 may be output at this time, but
                                             they are not relevant to this check.

                                               NG        Replace side airbag assembly (LH).


  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.




2002 ECHO (RM884U)

                                                               Author :            Date :             473



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