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                                                                                                                  DI-459
                                               DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM
                                                                                                                    DI2I5-21




 SRS Warning Light Circuit Malfunction (Always lights up, when
 ignition switch is in LOCK position.)

CIRCUIT DESCRIPTION
The SRS warning light is located on the combination meter.
When the SRS is normal, the SRS warning light lights up for approx. 6 seconds after the ignition switch is
turned from the LOCK position to ACC or ON position, and then turns OFF automatically.
If there is a malfunction in the SRS, the SRS warning light lights up to inform the driver of the abnormality.
When terminals Tc and E1 of the DLC1 are connected, the DTC is displayed by blinking the SRS warning
light.

WIRING DIAGRAM




                                                                                                         Airbag Sensor
                                                         SRS Warning Light                               Assembly
       I14               Driver Side J/B                                              J5
       Ignition SW                                       (Combination Meter)
                                                                                      J/C
                      4             IGN           11       5         8                                3
                  B-R                                GR-B                  L                    L
                      1I                          1F      C25       C28                              C21 LA
       7 AM2   IG2 6                                                              C         C


                      Engine Room R/B
                                    AM2
           W-R
                          2                       2
                                2          1

                               W




         Battery




                                                                                                                     H17126




 2002 4RUNNER (RM887U)

                                                                       Author :                 Date :              635
DI-460
                                            DIAGNOSTICS   -   SUPPLEMENTAL RESTRAINT SYSTEM

INSPECTION PROCEDURE

   1        Prepare for inspection. (See step 1 on page DI-456 )




   2        Does SRS warning light turn OFF?

 LOCK              Airbag Sensor Assembly       PREPARATION:
                                                (a) Turn ignition switch to LOCK.
                                                (b) Disconnect negative (-) terminal cable from the battery,
                                                    and wait at least for 90 seconds.
                                                (c) Disconnect the airbag sensor assembly connector.
                                                (d) Connect negative (-) terminal cable to the battery.
                                                CHECK:
                                                Check operation of SRS warning light.
 AB0117   H01293                       H01295



                                                  NO          Check SRS warning light circuit or terminal AB
                                                              circuit of DLC1.


  YES



  Replace airbag sensor assembly.




2002 4RUNNER (RM887U)

                                                                     Author :           Date :          636



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