Toyota Sienna Service Manual: Short in Driver Side Squib Circuit
DTC B0100/13 Short 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 B0100/13
is recorded when a short circuit is detected in the driver side squib circuit.
DTC No. |
DTC Detecting Condition |
Trouble Area |
B0100/13 |
- Short circuit between D+ wire harness and D- wire
harness of driver side squib
- Driver side squib malfunction
- Spiral cable malfunction
- Center airbag sensor assembly malfunction
|
- Steering pad (Driver side squib)
- Spiral cable
- Center airbag sensor assembly
- Instrument panel wire
|
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 STEERING PAD (DRIVER SIDE SQUIB)

- 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 steering pad.
- 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
- 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 B0100/13 is not output.
HINT:
Codes other than DTC B0100/13 may be output at this
time, but they are not related to this check.
Go to step 2

REPLACE STEERING PAD
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 spiral
cable.
- Check that the spiral cable connectors (on the steering
pad side) are not damaged.
OK:
The lock button is not disengaged, and the claw of
the lock is not deformed or damaged.
REPLACE SPIRAL CABLE

3 CHECK DRIVER SIDE SQUIB 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

Go to step 5

4 CHECK CENTER AIRBAG SENSOR ASSEMBLY

- Connect the connectors to the steering pad 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 B0100/13 is not output.
HINT:
Codes other than code B0100/13 may be output at this
time, but they are not related to this check.
REPLACE CENTER AIRBAG SENSOR
ASSEMBLY

USE SIMULATION METHOD TO CHECK
5 CHECK INSTRUMENT PANEL WIRE

- Disconnect the instrument panel wire connector from the
spiral cable.
HINT:
The activation prevention mechanism of connector "B"
has already been released.
- Measure the resistance according to the value(s) in the
table below.
Standard resistance

REPAIR OR REPLACE INSTRUMENT
PANEL
WIRE

6 CHECK SPIRAL CABLE

- Release the activation prevention mechanism built into
connector "D" (7).
- Measure the resistance according to the value(s) in the
table below.
Standard resistance

REPLACE SPIRAL CABLE

USE SIMULATION METHOD TO CHECK
1. DTCS FOR AIRBAG SYSTEM
If a malfunction code is displayed during the DTC check,
check the circuit listed for the code in the table below
(Proceed to the page listed for that circuit).
HINT:
...
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 instr ...
Other materials:
All Doors cannot be Locked / Unlocked at Once
DESCRIPTION
The body ECU receives a switch signal from the master switch, the door
control switch, the driver door
key cylinder and the passenger door key cylinder and then drives the door lock
motor.
WIRING DIAGRAM
INSPECTION PROCEDURE
1 INSPECT FUSE (ECU-B)
Remove ECU-B fuse f ...
Components
...
Fuel pump shut off
system
To minimize the risk of fuel leakage when the engine stalls or
when an airbag inflates upon collision, the fuel pump shut off
system stops the supply of fuel to the engine.
Follow the procedure below to restart the engine after the system is
activated.
Vehicles without a smart key system
...