Seat Belt Warning System - How To Proceed With Troubleshooting

Land Cruiser URJ200 URJ202 GRJ200 VDJ200 - SEAT BELT


SEAT BELT WARNING SYSTEM - HOW TO PROCEED WITH TROUBLESHOOTING

  • HINT:
Use the following procedures to troubleshoot the seat belt warning system.
*: Use the intelligent tester.

1.VEHICLE BROUGHT TO WORKSHOP
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2.INSPECT BATTERY VOLTAGE
  • Standard voltage:
  • 11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

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3.CHECK FOR DTC*

Check for DTCs and make a note of any codes that are output.

Clear the DTCs.

Based on the DTCs output above, try to cause the output of the same CAN communication system DTC or airbag system DTC by simulating the symptoms indicated by the DTC. Then recheck for DTCs.

Result
ResultProceed to
DTC is not outputA
CAN communication system DTC is output (for LHD)B
CAN communication system DTC is output (for RHD)C
Airbag system DTC is outputD
B.
Go to CAN COMMUNICATION SYSTEM ()
C.
Go to CAN COMMUNICATION SYSTEM ()
D.
Go to AIRBAG SYSTEM ()
A
4.PROBLEM SYMPTOMS TABLE

Refer to the problem symptoms table ().

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5.OVERALL ANALYSIS AND TROUBLESHOOTING*

Operation check ()

Data List / Active Test ()

Terminals of ECU ()

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6.REPAIR OR REPLACE
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7.CONFIRMATION TEST
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END