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DI-284
                                                 DIAGNOSTICS     -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                   DI1NC-18




  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




                 S8
                 Side Squib (RH)

                                                                                    2
                                             1               Y-R                   C6 SFR+
                                                             (*1)


                                                                                    1
                                             2               Y-G
                                                                                   C6 SFR-
                                                             (*1)




*1 : w/ Side Airbag                                                                                                H01454




2002 ECHO (RM884U)

                                                                             Author :                    Date :      454
                                                                                                      DI-285
                                          DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM

INSPECTION PROCEDURE

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




  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
                           Sensor
Squib (RH)                                      airbag sensor assembly and the side airbag assembly (RH)
                           Assembly
                                                (See page DI-239 ).
                                                CHECK:
                                                For the connector (on the side airbag assembly side) between
                                                the side airbag assembly (RH) and the airbag sensor assembly,
                                                measure the resistance between SFR+ and SFR-.
                     SFR-             SFR+      OK:
                                                      Resistance: 1 M or Higher
             (-)     (+)
                                                  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 :            455
DI-286
                                            DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



    3      Check airbag sensor assembly.

                                                 PREPARATION:
                                                 (a) Connect the connector to the airbag sensor assembly.
                           Airbag                (b) Connect the negative (-) terminal cable to the battery,
   Squib (RH)
                           Sensor                      and wait at least for 2 seconds.
                           Assembly
                                                 CHECK:
                                                 (a) Turn the ignition switch to ON and wait at least for 20 se-
                                                       conds.
                      ON                         (b) Clear the DTC stored in memory (See page DI-239 ).
                                                 (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-
                                                       conds.
         DLC3                DTC B0110/43        (e) Check the DTC (See page DI-239 ).
                                                 OK:
                                                       DTC B0110/43 is not output.
                                                 HINT:
     CG                                          Codes other than code B0110/43 may be output at this time, but
                 Tc                              they are not relevant to this check.
 H01020
 AB0119
 H10600 H01069                          H12844

                                                   NG         Replace airbag sensor assembly.


   OK




2002 ECHO (RM884U)

                                                                    Author :            Date :             456
                                                                                                     DI-287
                                         DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



   4       Check side squib (RH).

                                              PREPARATION:
                                              (a) Turn the ignition switch to LOCK.
                        Airbag                (b) Disconnect the negative (-) terminal cable from the bat-
   Squib (RH)           Sensor
                                                    tery, and wait at least for 90 seconds.
                        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.
                 ON
                                              CHECK:
                                              (a) Turn the ignition switch to LOOK, and wait at least for 20
                                                    second.
                                              (b) Turn the ignition switch to ON and wait at least for 20 se-
                                                    conds.
        DLC3              DTC B0110/43
                                              (c) Clear the DTC stored in memory (See page DI-239 ).
                                              (d) Turn the ignition switch to LOCK, and wait at least for 20
                                                    seconds.
                                              (e) Turn the ignition switch to ON and wait at least for 20 se-
   CG                                               conds.
                Tc
H01021
                                              (f)   Check the DTC (See page DI-239 ).
AB0119
H10600 H01069                        H12845   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.




2002 ECHO (RM884U)

                                                                 Author :           Date :             457



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