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

Toyota Sienna Service Manual / Supplemental restraint system / Airbag system / Diagnostic trouble code chart / Short to B+ in Side Squib RH Circuit

DTC B0113/42 Short to B+ in Side Squib RH Circuit

DESCRIPTION

The side squib RH circuit consists of the center airbag sensor assembly and the front seat side airbag assembly RH.

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

DTC B0113/42 is recorded when a short to B+ is detected in the side squib RH circuit.

DTC No.	DTC Detecting Condition	Trouble Area
B0113/42	Short circuit in side squib RH wire harnss (to B+) Side squib RH malfunction Center airbag sensor assembly malfunction	Front seat side airbag assembly RH (Side squib RH) Center airbag sensor assembly Floor wire No. 2

INSPECTION PROCEDURE

HINT:

Perform the simulation method by selecting the "check mode" (signal check) with the intelligent tester (8).
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 FRONT SEAT SIDE AIRBAG ASSEMBLY RH (SIDE SQUIB RH)

CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY RH (SIDE 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 front seat side airbag assembly RH.
Connect the black wire side of SST (resistance 2.1 Ω) to the floor wire No. 2.

CAUTION: Never connect a tester to the front seat side airbag assembly RH (side 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

OK: DTC B0113/42 is not output. HINT: Codes other than DTC B0113/42 may be output at this time, but they are not related to this check.

Go to step 2

REPLACE FRONT SEAT ASSEMBLY RH

2 CHECK FLOOR WIRE NO.2 (SIDE SQUIB RH CIRCUIT)

CHECK FLOOR WIRE NO.2 (SIDE SQUIB RH CIRCUIT)

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.
Disconnect the connector from 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.
Measure the voltage according to the value(s) in the table below.

Standard voltage

Standard voltage

REPAIR OR REPLACE FLOOR WIRE NO.2

3 CHECK CENTER AIRBAG SENSOR ASSEMBLY

CHECK CENTER AIRBAG SENSOR ASSEMBLY

Turn the ignition switch to the LOCK position.
Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
Connect the connectors to the front seat side 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 B0113/42 is not output. HINT: Codes other than code B0113/42 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 to GND in Side Squib RH Circuit

DTC B0112/41 Short to GND in Side Squib RH Circuit DESCRIPTION The side squib RH circuit consists of the center airbag sensor assembly and the front seat side airbag assembly RH. The circuit i ...

Short in Side Squib LH Circuit

DTC B0115/47 Short 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 instruc ...

Other materials:

The Other Caller cannot Hear Your Voice, or Your Voice is too Quiet or Distorted
INSPECTION PROCEDURE 1 CHECK CELLULAR PHONE Check if the other side can hear your voice properly. OK: Your voice can be heard correctly. 2 CHECK SETTINGS Check if the mute switch is set to ON. OK: Mute switch is not set to ON. 3 CHECK SETTINGS Enter the "Handsfree ...

Internal Control Module Random Access Memory (RAM) Error
DESCRIPTION The ECM continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. This self-check ensures that the ECM is functioning properly. If any malfunction is detected, the ECM sets the appropriate DTC and illumina ...

Blower Motor Circuit
DESCRIPTION The blower motor is operated by signals from the A/C amplifier. Blower motor speed signals are transmitted by changes in the Duty Ratio. Duty Ratio The duty ratio is the ratio of the period of continuity in one cycle. For example, if A is the period of continuity in one cycl ...