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Toyota Sienna Service Manual: Driver Side Seat Belt Warning Light does not Operate

Toyota Sienna Service Manual / Meter / Meter / gauge system / On-vehicle inspection / Driver Side Seat Belt Warning Light does not Operate

DESCRIPTION

When turning the ignition switch to the ON position, the combination meter assembly communicates with the supplemental restraint system by the multiplex communication system. Unless the driver side seat belt is fastened, the combination meter assembly will turn on the seat belt warning light for driver side. If the driver side seat belt is fastened, then the combination meter assembly will turn off the driver side seat belt warning light.

WIRING DIAGRAM

WIRING DIAGRAM

INSPECTION PROCEDURE

1 CHECK MULTIPLEX COMMUNICATION SYSTEM

  1. Check if the MULTIPLEX communication DTC is output

Result

Result

2 PERFORM ACTIVE TEST BY INTELLIGENT TESTER

  1. Connect the intelligent tester to the DLC3.
  2.  Turn the ignition switch to the ON position.
  3.  Enter the following menus: DIAGNOSIS / OBD/MOBD / METER / ACTIVE TEST.
  4.  Check the operation by referring to the value(s) in the table below.

METER:

METER

OK: Warning light condition (ON/OFF) can be switched by "ACTIVE TEST".

3 CHECK DTC

  1. Check if DTC B0126 is output

Result

Result

REPLACE CENTER AIR BAG SENSOR ASSEMBLY

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Other materials:

Installation
1. INSTALL HIGH MOUNTED STOP LIGHT ASSEMBLY 2. INSTALL REAR SPOILER Install the rear spoiler with the 3 nuts and 2 clips. Connect the center stop light connector. 3. INSTALL BACK DOOR CENTER GARNISH Engage the 5 clips to install the back door center garnish. ...

Precaution
1. HANDLING PRECAUTIONS ON STEERING SYSTEM (a) Be careful to replace the parts properly because they could affect the performance of the steering system and result in a driving hazard. 2. HANDLING PRECAUTIONS ON SRS AIRBAG SYSTEM (a) The SIENNA is equipped with SRS (Supplemental Restraint Sys ...

Circuit opening relay
Inspection 1. INSPECT CIRCUIT OPENING RELAY  Using an ohmmeter, measure the resistance according to the value(s) in the table below. Standard resistance If the result is not as specified, replace the relay. ...

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