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                                                                                                                        DI-317
                                                   DIAGNOSTICS        -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                         DI1BH-21




  DTC                  B0132/61                          Short in P/T Squib (RH) Circuit
                                                         (to Ground)

CIRCUIT DESCRIPTION
The P/T squib (RH) circuit consists of the airbag sensor assembly and seat belt pretensioner (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 B0132/61 is recorded when a ground short is detected in the P/T squib (RH) circuit.
    DTC No.                        DTC Detecting Condition                                              Trouble Area
                  S Short circuit in P/T squib (RH) wire harness (to ground)   S Seat belt pretensioner (RH)
    B0132/61      S P/T squib (RH) malfunction                                 S Airbag sensor assembly
                  S Airbag sensor assembly malfunction                         S Wire harness


WIRING DIAGRAM
See page DI-310 .

INSPECTION PROCEDURE

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




   2     Check P/T squib (RH) circuit.

                                                          CHECK:
                                                          For the connector (on the seat belt pretensioner side) between
                                                          the seat belt pretensioner (RH) and the airbag sensor assem-
                                Airbag
                                                          bly, measure the resistance between PR+ and body ground.
 P/T Squib (RH)                 Sensor
                                Assembly                  OK:
                                                                Resistance: 1 M or Higher



                           PR+
               (-)        (+)

                                                              NG          Repair or replace harness or connector be-
                                                                          tween seat belt pretensioner (RH) and airbag
H01019                                                                    sensor assembly.
H08392                                         H08393




  OK




2002 ECHO (RM884U)

                                                                                Author :                       Date :    487
DI-318
                                          DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



    3       Check airbag sensor assembly.

                                                PREPARATION:
                                                (a) Connect the connector to the airbag sensor assembly.
  P/T Squib (RH)       Airbag                   (b) Using a service wire, connect PR+ and PR- of the con-
                       Sensor
                       Assembly
                                                      nector (on the seat belt pretensioner side) between the
                                                      seat belt pretensioner (RH) and the airbag sensor assem-
                                                      bly.
                                                (c) Connect negative (-) terminal cable to the battery, and
   PR+
                                                      wait at least for 2 seconds.
                 PR-              ON
                                                CHECK:
                                                (a) Turn the ignition switch to ON and wait at least for 20 se-
                                                      conds.
                                                (b) Clear DTC stored in memory (See step 5 on page
                                                      DI-239 ).
            DLC3          DTC B0132/61          (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.
         CG      Tc
 H01020
 H02139
                                                (e) Check DTC (See page DI-239 ).
 AB0118 AB0119
 H10600 H01079                         H10623   OK:
                                                      DTC B0132/61 is not output.
                                                HINT:
                                                Codes other than code B0132/61 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 :              488
                                                                                                        DI-319
                                           DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM



   4        Check P/T squib (RH).

                                                PREPARATION:
                                                (a) Turn the ignition switch to LOCK.
                                                (b) Disconnect negative (-) terminal cable from the battery,
                          Airbag
P/T Squib (RH)            Sensor
                                                      and wait at least for 90 seconds.
                          Assembly              (c) Connect the seat belt pretensioner (RH) connector.
                                                (d) Connect 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 DTC stored in memory (See step 5 on page
                                                      DI-239 ).
         DLC3               DTC B0132/61        (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.
                                                (e) Check DTC (See page DI-239 ).
       CG       Tc
                                                OK:
H01021
AB0119
H10600 H01079                          H10624         DTC B0132/61 is not output.
                                                HINT:
                                                Codes other than code B0132/61 may be output at this time, but
                                                they are not relevant to this check.

                                                  NG         Replace seat belt pretensioner (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 :              489



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