Toyota RAV4 manuals

Toyota Sienna Service Manual: Short to B+ in Side Squib LH Circuit

DTC B0118/46 Short to B+ in Side Squib LH Circuit

DESCRIPTION

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

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

DTC B0118/46 is recorded when a short to B+ 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 B0118/46 is not output.

HINT: Codes other than DTC B0118/46 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.  Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
  6.  Turn the ignition switch to the ON position.
  7.  Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage a

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

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

OK: DTC B0118/46 is not output.

HINT: Codes other than code B0118/46 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

Short to GND in Side Squib LH Circuit
DTC B0117/45 Short to GND in Side Squib LH Circuit DESCRIPTION The side squib LH circuit consists of the center airbag sensor assembly and the front seat side airbag assembly LH. This circuit ...

Seat Belt Buckle Switch LH Circuit Malfunction
DTC B0126/27 Seat Belt Buckle Switch LH Circuit Malfunction DESCRIPTION The seat belt buckle switch LH circuit consists of the center airbag sensor assembly and the front seat inner belt assembly ...

Other materials:

Front passenger occupant classification system
Your vehicle is equipped with a front passenger occupant classification system. This system detects the conditions of the front passenger seat and activates or deactivates the devices for the front passenger. SRS warning light Seat belt reminder light “AIR BAG OFF” indicator light ...

DTC check / clear
NOTICE: All the stored DTCs and freeze frame data are erased if:  the ECM is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from ON to ACC or off while in check mode. Before changing modes, always check and make a note of any DTCs and fr ...

Short to B+ in Curtain Shield Squib RH Circuit
DTC B1163/82 Short to B+ in Curtain Shield Squib RH Circuit DESCRIPTION The curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly RH. The circuit instructs the SRS to deploy when deployment conditions are met. DTC B1163/82 is ...

© 2011-2022 Copyright www.tsienna.net