Toyota RAV4 manuals

Toyota Sienna Service Manual: Open in Side Squib LH Circuit

DTC B0116/48 Open in Side Squib LH Circuit

DESCRIPTION

The side squib LH circuit consists of the center airbag sensor assembly and the front seat side assembly LH.

This circuit instructs the SRS to deploy when deployment conditions are met.

DTC B0116/48 is recorded when an open circuit is detected in the side squib LH circuit.

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1 CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY LH (SIDE SQUIB LH)

 CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY LH

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the connectors from the front seat side airbag assembly LH.
  4.  Connect the black wire side of SST (resistance 2.1 Ω) to the floor wire.

CAUTION: Never connect a tester to the front seat side airbag assembly LH (side squib LH) for measurement, as this may lead to a serious injury due to airbag deployment.

NOTICE: Do not forcibly insert the SST into the terminals of the connector when connecting.

Insert the SST straight into the terminals of the connector.

SST 09843-18060

  1.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  2.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  3.  Clear the DTCs stored in memory.
  4.  Turn the ignition switch to the LOCK position.
  5.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  6.  Check the DTCs

OK: DTC B0116/48 is not output.

HINT: Codes other than DTC B0116/48 may be output at this time, but they are not related to this check.

REPLACE FRONT SEAT ASSEMBLY LH

2 CHECK FLOOR WIRE (SIDE SQUIB LH CIRCUIT)

CHECK FLOOR WIRE

  1. Turn the ignition switch to the LOCK position.
  2.  Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
  3.  Disconnect the SST (resistance 2.1 Ω) from the floor wire.
  4. Disconnect the connector from the center airbag sensor assembly.
  5.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

  1. Connect the connectors to the front seat side airbag assembly LH and the center airbag sensor assembly.
  2.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  3.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  4.  Clear the DTCs stored in memory.
  5.  Turn the ignition switch to the LOCK position.
  6.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  7.  Check the DTCs.

OK: DTC B0116/48 is not output.

HINT: Codes other than code B0116/48 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

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Other materials:

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Diagnostic trouble code chart
HINT:  If a trouble code is displayed during the DTC check, inspect the circuit listed for that code. For details of the code, refer to the "See page" in the DTC chart.  Inspect the fuse and relay before investigating the suspected areas shown in the table below. W ...

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