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 cib01124

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                                                                                                                      DI-291
                                                  DIAGNOSTICS        -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                       DI1NE-15




  DTC                 B0112/41                          Short in Side Squib (RH) Circuit (to
                                                        Ground)

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 B0112/41 is recorded when a ground short is detected in the side squib (RH) circuit.
     DTC No.                       DTC Detecting Condition                                            Trouble Area
                 S Short circuit in side squib (RH) wire harness (to ground)   S Side airbag assembly (RH)
    B0112/41     S Side squib (RH) malfunction                                 S Airbag sensor assembly
                 S Airbag sensor assembly malfunction                          S Wire harness


WIRING DIAGRAM
See page DI-284 .

INSPECTION PROCEDURE

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




    2      Check side squib (RH) circuit.

                                                         CHECK:
                                                         For the connector (on the side airbag assembly side) between
                           Airbag                        the side airbag assembly (RH) and the airbag sensor assembly,
  Squib (RH)               Sensor                        measure the resistance between SFR+ and body ground.
                           Assembly                      OK:
                                                               Resistance: 1 M or Higher



                                        SFR+



           (-)     (+)
                                                             NG          Repair or replace harness or connector be-
  H01019
                                                                         tween side airbag assembly (RH) and airbag
  H02118                                       H02126
                                                                         sensor assembly.


   OK




2002 ECHO (RM884U)

                                                                                Author :                     Date :    461
DI-292
                                            DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



    3        Check airbag sensor assembly.

                                                  PREPARATION:
                                                  (a) Connect the connector to the airbag sensor assembly.
                         Airbag                   (b) Using a service wire, connect SFR+ and SFR- of the con-
 Squib (RH)              Sensor                         nector (on the side airbag assembly side) between the
                         Assembly
                                                        side airbag assembly (RH) and the airbag sensor assem-
                                                        bly.
                      
                                                  (c) Connect the negative (-) terminal cable to the battery,
                                                        and wait at least for 2 seconds.
                                    ON            CHECK:
  SFR-                SFR+
                                                  (a) Turn the ignition switch to ON and wait at least for 20 se-
                                                        conds.
                                                  (b) Clear the DTC stored in memory (See step 5 on page
                                                        DI-239 ).
                             DTC B0112/41
             DLC3                                 (c) Turn the ignition switch to LOCK, and wait at least for 20
                                                        seconds.
                                                  (d) Turn the ignition switch to ON and wait at least for 20 se-
        CG       Tc                                     conds.
 H01020
 W03860
                                                  (e) Check the DTC (See page DI-239 ).
 AB0118 AB0119
 H10600 H01067                           H12848   OK:
                                                        DTC B0112/41 is not output.
                                                  HINT:
                                                  Codes other than code B0112/41 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 :             462
                                                                                                      DI-293
                                           DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



  4        Check side squib (RH).

                                               PREPARATION:
                                               (a) Turn the ignition switch to LOCK.
                                               (b) Disconnect the negative (-) terminal cable from the bat-
                          Airbag
                          Sensor                     tery, and wait at least for 90 seconds.
 Squib (RH)
                          Assembly             (c) Connect the side airbag assembly (RH) 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 step 5 on page
                                                     DI-239 ).
                            DTC B0112/41       (c) Turn the ignition switch to LOCK, and wait at least for 20
        DLC3                                         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
H01021
                                               OK:
AB0119
H10600 H01067                         H12849         DTC B0112/41 is not output.
                                               HINT:
                                               Codes other than code B0112/41 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. If the malfunctioning part can not be
 detected by the simulation method, replace all SRS components including the wire harness.




2002 ECHO (RM884U)

                                                                   Author :           Date :            463



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