Toyota RAV4 manuals

Toyota Sienna Service Manual: Open in Driver Side Squib Circuit

DTC B0101/14 Open in Driver Side Squib Circuit

DESCRIPTION

The driver side squib circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad.

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

DTC B0101/14 is recorded when an open circuit is detected in the driver side squib circuit.

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1 CHECK STEERING PAD (DRIVER SIDE SQUIB)

CHECK STEERING PAD

  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 steering pad.
  4.  Connect the white wire side of SST (resistance 2.1 Ω) to the spiral cable.

CAUTION: Never connect a tester to the steering pad (driver side squib) 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 B0101/14 is not output.

HINT: Codes other than DTC B0101/14 may be output at this time, but they are not related to this check.

REPLACE STEERING PAD

2 CHECK DRIVER SIDE SQUIB CIRCUIT

 

  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 spiral cable.
  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 steering pad 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 B0101/14 is not output.

HINT: Codes other than code B0101/14 may be output at this time, but they are not related to this check.

CHECK CENTER AIRBAG SENSOR ASSEMBLY

USE SIMULATION METHOD TO CHECK

4 CHECK INSTRUMENT PANEL WIRE

CHECK INSTRUMENT PANEL WIRE

  1. Disconnect the instrument panel wire connector from the spiral cable.
  2.  Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

5 CHECK SPIRAL CABLE

  1. Measure the resistance according to the value(s) in the table below.

Standard resistance

Standard resistance

USE SIMULATION METHOD TO CHECK

Short in Driver Side Squib Circuit
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Other materials:

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Disposal
HINT: When scrapping a vehicle equipped with the SRS or disposing of the steering pad, be sure to deploy the airbag first in accordance with the procedure described below. If any abnormality occurs with airbag deployment, contact the SERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC. CAUTION: ...

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