Last Modified: 7-3-2017 6.8:8.0.40 Doc ID: RM0000017PL006X
Model Year Start: 2007 Model: LX470 Prod Date Range: [08/2006 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0100/13; Short in Driver Side Squib Circuit; 2007 MY LX470 [08/2006 -        ]

DTC

B0100/13

Short in Driver Side Squib Circuit

DESCRIPTION

The driver side squib circuit consists of the center airbag sensor, the spiral cable and the steering wheel pad.

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

DTC B0100/13 is recorded when a short is detected in the driver side squib circuit.

DTC No.

DTC Detection Condition

Trouble Area

B0100/13
  • Short in driver side squib circuit
  • Driver side squib malfunction
  • Spiral cable malfunction
  • Center airbag sensor assembly malfunction
  • Steering wheel pad (driver side squib)
  • Spiral cable
  • Center airbag sensor assembly
  • Dash wire
  • Column wire

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1.

CHECK CONNECTOR

(a) Turn the ignition switch to LOCK.

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

(c) Disconnect the connectors from the steering wheel pad.

(d) Check that the spiral cable connectors (on the steering wheel pad side) are not damaged.

OK:

The lock button is not disengaged, or the claw of the lock is not deformed or damaged.

NG

REPLACE SPIRAL CABLE

OK

2.

CHECK DRIVER SIDE SQUIB CIRCUIT

(a) Disconnect the connector from the center airbag sensor.

(b) Release the airbag activation prevention mechanism built in the connector on the center airbag sensor side between the steering wheel pad (driver side squib) and the center airbag sensor 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM .

(c) Measure the resistance between D+ and D- of the orange connector on the steering wheel pad (driver side squib) side between the center airbag sensor and the steering wheel pad (driver side squib).

Standard resistance:

1 MΩ or higher

NG

GO TO STEP 5

OK

3.

CHECK CENTER AIRBAG SENSOR ASSEMBLY

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

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

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

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

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

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

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

OK:

DTC B0100/13 is not output.

HINT:

Codes other than code B0100/13 may be output at this time, but they are not relevant to this check.

NG

REPLACE CENTER AIRBAG SENSOR ASSEMBLY

OK

4.

CHECK DRIVER SIDE SQUIB

(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 steering wheel pad (driver side squib) to the spiral cable.

(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 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 B0100/13 is not output.

HINT:

Codes other than code B0100/13 may be output at this time, but they are not relevant to this check.

NG

REPLACE STEERING WHEEL PAD (DRIVER SIDE SQUIB)

OK

USE SIMULATION METHOD TO CHECK

5.

CHECK SPIRAL CABLE

(a) Disconnect the A29 spiral cable connector from the column wire.

(b) Release the airbag activation prevention mechanism built in the connector of the spiral cable on the center airbag sensor side 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM .

(c) Measure the resistance between D+ and D- of the orange spiral cable connector on the steering wheel pad (driver side squib) side.

Standard resistance:

1 MΩ or higher

NG

REPLACE SPIRAL CABLE

OK

6.

CHECK COLUMN WIRE

(a) Disconnect the II4 column wire connector from the dash wire.

(b) Release the airbag activation prevention mechanism built in the connector of the column wire on the center airbag sensor side 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM .

(c) Measure the resistance between D+ and D- of the A29 column wire connector on the spiral cable side.

Standard resistance:

1 MΩ or higher

NG

REPAIR OR REPLACE COLUMN WIRE

OK

7.

CHECK DASH WIRE

(a) Release the airbag activation prevention mechanism built in the connector of the dash wire on the center airbag sensor side 2007 MY LX470 [08/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSIS SYSTEM .

(b) Measure the resistance between D+ and D- of the II4 dash wire connector on the column wire side.

Standard resistance:

1 MΩ or higher

NG

REPAIR OR REPLACE DASH WIRE

OK

USE SIMULATION METHOD TO CHECK