Toyota Sienna Service Manual: 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 assembly RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
DTC B1630/83 is recorded when a short circuit is detected in the rear curtain
shield squib RH circuit
DTC No. |
DTC Detecting Condition |
Trouble Area |
B1630/83 |
- Short circuit between ICR+ wire harness and ICRwire
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
|
WIRING DIAGRAM

INSPECTION PROCEDURE
HINT:
- Perform the simulation method by selecting the "check mode"
(signal check) with the intelligent tester
- After selecting the "check mode" (signal check), perform the simulation
method by wiggling each
connector of the airbag system or driving the vehicle on a city or rough
road
1 CHECK CURTAIN SHIELD AIRBAG ASSEMBLY RH (REAR CURTAIN SHIELD SQUIB RH)

- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the
battery, and wait for at least 90 seconds.
- Disconnect the connectors from the curtain shield airbag
assembly RH.
- 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
- Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
- Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
- Clear the DTCs stored in memory (5).
- Turn the ignition switch to the LOCK position.
- Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
- Check the DTCs (5).
OK:
DTC B1630/83 is not output.
HINT:
Codes other than DTC B1630/83 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 CONNECTORS
- Turn the ignition switch to the LOCK position.
- Disconnect the negative (-) terminal cable from the
battery, and wait for at least 90 seconds.
- Disconnect the SST (resistance 2.1 Ω) from the floor
wire No. 2
- Check that the floor wire No. 2 connectors (on the curtain
shield airbag assembly RH side) are not damaged.
OK:
The lock button is not disengaged, and the claw of
the lock is not deformed or damaged.
REPAIR OR REPLACE FLOOR WIRE
NO.2

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

- Disconnect the connector from the center airbag sensor
assembly.
- Release the activation prevention mechanism built into
connector "B" (7).
- Measure the resistance according to the value(s) in the
table below.
Standard resistance

REPAIR OR REPLACE FLOOR WIRE
NO.2

4 CHECK CENTER AIRBAG SENSOR ASSEMBLY

- Connect the connectors to the curtain shield airbag
assembly RH and the center airbag sensor assembly.
- Connect the negative (-) terminal cable to the battery,
and wait for at least 2 seconds.
- Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
- Clear the DTCs stored in memory (5).
- Turn the ignition switch to the LOCK position.
- Turn the ignition switch to the ON position, and wait for at
least 60 seconds.
- Check the DTCs (5).
OK:
DTC B1630/83 is not output.
HINT:
Codes other than DTC B1630/83 may be output at this
time, but they are not related to this check.
REPLACE CENTER AIRBAG SENSOR
ASSEMBLY

USE SIMULATION METHOD TO CHECK
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DESCRIPTION
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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 ...
Other materials:
Automatic transaxle unit
COMPONENTS
...
Taking out the jack and tools
Remove the cover.
Remove the adapter socket.
Remove the jack.
Remove the wheel nut wrench.
...
Power Window cannot be Operated by Wireless Operation
DESCRIPTION
When the switch on the transmitter is operated during normal operating
conditions, the
multiplex network body ECU sends a request signal to the master switch and the
regulator switches which
then drive the applicable power window motors.
INSPECTION PROCEDURE
1 CHECK WIRELESS DOO ...