Toyota RAV4 manuals

Toyota Sienna Service Manual: Open in Rear Curtain Shield Squib RH Circuit

DTC B1631/84 Open in Rear Curtain Shield Squib RH Circuit

DESCRIPTION

The rear 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 B1631/84 is recorded when an open circuit is detected in the rear curtain shield squib RH circuit.

DTC No.

DTC Detecting Condition

Trouble Area

B1631/84

  • Open circuit in ICR+ wire harness or ICR- wire harness of rear curtain shield squib RH
  •  Rear curtain shield squib RH malfunction
  •  Center airbag sensor assembly malfunction
  • Curtain shield airbag assembly RH (Rear curtain shield squib RH)
  • Center airbag sensor assembly
  • Floor wire No. 2

INSPECTION PROCEDURE

HINT:

1 CHECK CURTAIN SHIELD AIRBAG ASSEMBLY RH (REAR CURTAIN SHIELD SQUIB RH)

CHECK CURTAIN SHIELD AIRBAG ASSEMBLY RH (REAR CURTAIN SHIELD SQUIB RH)

  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 RH.
  4.  Connect the white wire side of SST (resistance 2.1 Ω) to the floor wire No. 2.

CAUTION: Never connect a tester to the curtain shield airbag assembly RH (Rear curtain shield squib RH) 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 (5).
  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 B1631/84 is not output.

HINT: Codes other than DTC B1631/84 may be output at this time, but they are not related to this check.

Go to step 2

REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY RH

2 CHECK FLOOR WIRE NO.2 (REAR CURTAIN SHIELD SQUIB RH CIRCUIT)

CHECK FLOOR WIRE NO.2 (REAR CURTAIN SHIELD SQUIB RH 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 No. 2.
  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

REPAIR OR REPLACE FLOOR WIRE NO.2

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

  1. Connect the connectors to the curtain shield airbag assembly RH 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).
  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 (5).

OK: DTC B1631/84 is not output. HINT: Codes other than DTC B1631/84 may be output at this time, but they are not related to this check.

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

USE SIMULATION METHOD TO CHECK

Short in Rear Curtain Shield Squib RH Circuit
DTC B1630/83 Short in Rear Curtain Shield Squib RH Circuit DESCRIPTION The rear curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag assembl ...

Short to GND in Rear Curtain Shield Squib RH Circuit
DTC B1632/81 Short to GND in Rear Curtain Shield Squib RH Circuit DESCRIPTION The rear curtain shield squib RH circuit consists of the center airbag sensor assembly and the curtain shield airbag ...

Other materials:

Inspection
1. V (a) Inspect VSV operation. (1) Using an ohmmeter, measure the resistance according to the value(s) in the table below.V Standard resistance If the result is not as specified, replace the vsv. (B) inspect the vsv for ground. (1) Using an ohmmeter, measure the resistance accordin ...

Hood
COMPONENTS Adjustment HINT: Since a centering bolt is used as a hood hinge mounting bolt and hood lock mounting bolt, the hood and hood lock can not be adjusted with them on. Substitute a bolt with a washer for the centering bolt. 1. INSPECT HOOD SUB-ASSEMBLY Check that the clearance is ...

Installation
1. INSTALL OUTSIDE MOULDING Using a heat light, heat the mounting surface of the vehicle body between 40 to 60 C (104 to 140 F). NOTICE: Do not heat the body excessively. Remove the tape from the vehicle body. Wipe off the stains with cleaner. Clean the outside moulding (if reusing t ...

В© 2011-2019 Copyright www.tsienna.net