Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000017PW005X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0113/42; Short to B+ in Side Squib RH Circuit; 2007 MY LX470 [08/2006 -        ]

DTC

B0113/42

Short to B+ in Side Squib RH Circuit

DESCRIPTION

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

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

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

DTC No.

DTC Detection Condition

Trouble Area

B0113/42
  • Short in side squib RH circuit (to B+)
  • Side squib RH malfunction
  • Center airbag sensor assembly malfunction
  • Side airbag assembly RH (Side squib RH)
  • Center airbag sensor assembly
  • No. 2 floor wire

WIRING DIAGRAM

Refer to DTC B0110/43 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0110/43; Short in Side Squib RH Circuit+ .

INSPECTION PROCEDURE

PROCEDURE

1.

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

(a) Turn the ignition switch to LOCK.

(b) Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.

(c) Disconnect the connectors from the center airbag sensor and the side airbag RH (side squib RH).

(d) Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.

(e) Turn the ignition switch to ON.

(f) Measure the voltage between the body ground and SFR+ of the S35 No. 2 floor wire connector on the side airbag RH (side squib RH) side.

Standard voltage:

Below 1 V

NG

REPAIR OR REPLACE NO. 2 FLOOR WIRE

OK

2.

CHECK CENTER AIRBAG SENSOR ASSEMBLY

(a) Turn the ignition switch to LOCK.

(b) Airbag Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.

(c) Connect the connector to the center airbag sensor.

(d) Using a service wire, connect SFR+ and SFR- of the S35 No. 2 floor wire connector on the side airbag RH (side squib RH) side.

(e) Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.

(f) Turn the ignition switch to ON, and wait at least for 10 seconds.

(g) Clear the DTC stored in memory 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR .

(h) Turn the ignition switch to LOCK, and wait at least for 10 seconds.

(i) Turn the ignition switch to ON, and wait at least for 10 seconds.

(j) Check the DTC 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR .

OK:

DTC B0113/42 is not output.

HINT:

Codes other than code B0113/42 may be output at this time, but they are not relevant to this check.

NG

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

OK

3.

CHECK SIDE SQUIB RH

(a) Turn the ignition switch to LOCK.

(b) Disconnect the negative (-) terminal cable from the battery, and wait at least for 90 seconds.

(c) Connect the side airbag RH (side squib RH) connector.

(d) Connect the negative (-) terminal cable to the battery, and wait at least for 2 seconds.

(e) Turn the ignition switch to ON, and wait at least for 10 seconds.

(f) Clear the DTC stored in memory 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR .

(g) Turn the ignition switch to LOCK, and wait at least for 10 seconds.

(h) Turn the ignition switch to ON, and wait at least for 10 seconds.

(i) Check the DTC 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DTC CHECK / CLEAR .

OK:

DTC B0113/42 is not output.

HINT:

Codes other than code B0113/42 may be output at this time, but they are not relevant to this check.

NG

REPLACE SIDE AIRBAG ASSEMBLY RH (SIDE SQUIB RH)

OK

USE SIMULATION METHOD TO CHECK