Inspection Procedure

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

CHECK NO. 1 FLOOR WIRE (FRONT PRETENSIONER SQUIB LH CIRCUIT)
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
3. Disconnect the connectors from the center airbag sensor and the front seat outer belt LH.
4. Measure the resistance between the body ground and PL+ of the P21 No. 1 floor wire connector on the seat belt pretensioner LH (front pretensioner squib LH) side.
  Standard resistance: 1 MΩ or higher
Fig 1: Checking No. 1 Floor Wire (Front Pretensioner Squib LH Circuit)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE NO. 1 FLOOR WIRE

OK: GO TO NEXT STEP
CHECK CENTER AIRBAG SENSOR ASSEMBLY
1. Connect the connector to the center airbag sensor.
2. Using a service wire, connect PL+ and PL- of the P21 No. 1 floor wire connector on the seat belt pretensioner LH (front pretensioner squib LH) side.
3. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
4. Turn the ignition switch to ON, and wait at least for 10 seconds.
5. Clear the DTC stored in memory (see DTC CHECK/CLEAR ).
6. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
7. Turn the ignition switch to ON, and wait at least for 10 seconds.
8. Check the DTC (see DTC CHECK/CLEAR ).
  OK: DTC B0137/71 is not output.
  
  HINT:
  
  Codes other than code B0137/71 may be output at this time, but they are not relevant to this check.
Fig 2: Checking Center Airbag Sensor Assembly
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY

OK: GO TO NEXT STEP
CHECK FRONT PRETENSIONER SQUIB LH
1. Turn the ignition switch to LOCK.
2. Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.
3. Connect the seat belt pretensioner LH (front pretensioner squib LH) connector.
4. Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.
5. Turn the ignition switch to ON, and wait at least for 10 seconds.
6. Clear the DTC stored in memory (see DTC CHECK/CLEAR ).
7. Turn the ignition switch to LOCK, and wait at least for 10 seconds.
8. Turn the ignition switch to ON, and wait at least for 10 seconds.
9. Check the DTC (see DTC CHECK/CLEAR ).
  OK: DTC B0137/71 is not output.
  
  HINT:
  
  Codes other than code B0137/71 may be output at this time, but they are not relevant to this check.
Fig 3: Checking Front Pretensioner Squib LH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE SEAT BELT PRETENSIONER LH (FRONT PRETENSIONER SQUIB LH)

OK: USE SIMULATION METHOD TO CHECK