Toyota RAV4 manuals

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

DTC B1168/86 Short to B+ in Curtain Shield Squib LH Circuit

DESCRIPTION

The curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly LH.

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

DTC B1168/86 is recorded when a short to B+ is detected in the curtain shield squib LH circuit.

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1 CHECK CURTAIN SHIELD AIRBAG ASSEMBLY LH (CURTAIN SHIELD SQUIB LH)

CHECK CURTAIN SHIELD 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 curtain shield airbag assembly LH.
  4.  Connect the white wire side of SST (resistance 2.1 Ω) to the floor wire.

    CAUTION: Never connect a tester to the curtain shield airbag assembly LH (curtain shield 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

  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, and wait for at least 60 seconds.
  7.  Clear the DTCs stored in memory.
  8.  Turn the ignition switch to the LOCK position.
  9.  Turn the ignition switch to the ON position, and wait for at least 60 seconds.
  10.  Check the DTCs

OK: DTC B1168/86 is not output.

HINT: Codes other than DTC B1168/86 may be output at this time, but they are not related to this check.

REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY LH

2 CHECK FLOOR WIRE (CURTAIN SHIELD SQUIB LH CIRCUIT)

CHECK FLOOR WIRE (CURTAIN SHIELD SQUIB LH 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 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

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 curtain shield 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 B1168/86 is not output.

HINT: Codes other than code B1168/86 may be output at this time, but they are not related to this check.

USE SIMULATION METHOD TO CHECK

Short to GND in Curtain Shield Squib LH Circuit
DTC B1167/85 Short to GND in Curtain Shield Squib LH Circuit DESCRIPTION The curtain shield squib LH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembly L ...

Short in Driver Side Squib 2nd Step Circuit
DTC B1180/17 Short in Driver Side Squib 2nd Step Circuit DESCRIPTION The driver side squib 2nd step circuit consists of the center airbag sensor assembly, the spiral cable and the steering pad. ...

Other materials:

Touch Panel Switch does not Function
INSPECTION PROCEDURE 1 CHECK TOUCH PANEL Check for foreign matter on the display. OK: The display is clean 2 CHECK TOUCH SWITCH (DISPLAY CHECK MODE) Enter the "Display Check" mode (Touch Switch Check).  Touch the display in the area where the switch malfunction o ...

Installation
1. INSTALL TIMING CHAIN CASE OIL SEAL (a) Using SST, tap in a new oil seal until its surface is flush with the timing chain case edge. SST 09223-22010, 09506-35010 NOTICE: Keep the lip free from foreign matter. Do not tap on the oil seal at an angle. Make sure that the oil ...

Vehicle Speed Signal Circuit between Radio and Navigation Assembly and Combination Meter
DESCRIPTION The radio and navigation assembly receives a vehicle speed signal from the combination meter and information about the GPS antenna, and then adjusts vehicle position. HINT:  A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The sig ...

В© 2011-2019 Copyright www.tsienna.net