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DI-288
                                                    DIAGNOSTICS       -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                       DI1ND-14




  DTC                     B0111/44                        Open 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 B0111/44 is recorded when an open is detected in the side squib (RH) circuit.
     DTC No.                         DTC Detecting Condition                                           Trouble Area
                     S Open circuit in SFR+ wire harness or SFR- wire harness
                                                                                S Side airbag assembly (RH)
                       of squib
    B0111/44                                                                    S Airbag sensor assembly
                     S Side squib (RH) malfunction
                                                                                S Wire harness
                     S Airbag sensor assembly malfunction


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 SFR-.
                               Assembly
                                                          OK:
                                                                Resistance: Below 1 



                          SFR-               SFR+



               (-)       (+)                                   NG         Repair or replace harness or connector be-
 H01019
                                                                          tween side airbag assembly (RH) and airbag
 W03859                                          H01180                   sensor assembly.


   OK




2002 ECHO (RM884U)

                                                                                  Author :                    Date :     458
                                                                                                        DI-289
                                            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.
                                                 CHECK:
                                  ON
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 page DI-239 ).
                                                 (c) Turn the ignition switch to LOCK, and wait at least for 20
        DLC3                 DTC B0111/44
                                                       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
H01020
                                                 OK:
W03860 AB0119
H10600 H01070                           H12846         DTC B0111/44 is not output.
                                                 HINT:
                                                 Codes other than code B0111/44 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 :             459
DI-290
                                            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 page DI-239 ).
                                                 (c) Turn the ignition switch to LOCK, and wait at least for 20
                             DTC B0111/44              seconds.
         DLC3
                                                 (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:
 H01021
                                                       DTC B0111/44 is not output.
 AB0119
 H10600 H01070                          H12847   HINT:
                                                 Codes other than code B0111/44 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.




2002 ECHO (RM884U)

                                                                    Author :            Date :             460



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