Last Modified: 4-30-2014 6.6 S Doc ID: RM000001YVI004X
Model Year: 2006 Model: LX470 Prod Date Range: [01/2006 -           ]
Title: SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: DIAGNOSTIC TROUBLE CODE CHART; 2006 MY LX470 [01/2006 -        ]

DIAGNOSTIC TROUBLE CODE CHART

1. DTCS FOR SUPPLEMENTAL RESTRAINT SYSTEM

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

HINT:

  • When the SRS warning light remains on and the DTC output is the normal system code, a voltage source drop has most likely occurred. This malfunction is not stored in memory by the center airbag sensor. If the power source voltage returns to normal, the warning light will automatically go off.
  • When 2 or more codes are indicated, the code with the lower number appears first.
  • If a code not listed in the chart is displayed, the center airbag sensor may have malfunction.
  • In the case of any malfunction concerning an open circuit, short to ground, or short to B+ due to a squib, other trouble codes may not be detected. In this case, repair the malfunction currently indicated and then perform malfunction diagnosis again.
  • When DTC B1150/23 is detected as a result of troubleshooting for the Supplemental Restraint System, perform troubleshooting for the occupant detection system as shown in the chart below.
  • Mark in the check mode column:

    *1: DTC is not corresponding to the check mode.

    *2: DTC is corresponding to the check mode.

DTC No.

Detection Item

Trouble Area

Check Mode

SRS Warning Light

See page

B1150/23

Occupant Classification System Malfunction

1. Occupant classification ECU

2. Center airbag sensor assembly

3. No. 2 floor wire

4. Front seat wire RH

*1

ON

2006 MY LX470 [01/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1150/23; Occupant Classification System Malfunction

B1152/28

Passenger Airbag ON/OFF Indicator Circuit Malfunction

1. Air conditioning control assembly (Passenger airbag ON / OFF indicator)

2. Center airbag sensor assembly

3. Instrument panel

*1

ON

2006 MY LX470 [01/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1152/28; Passenger Airbag ON/OFF Indicator Circuit Malfunction

B0126/27

Seat Belt Buckle Switch LH Circuit Malfunction

1. Front seat inner belt assembly LH (Seat belt buckle switch LH)

2. Center airbag sensor assembly

3. Floor wire

*2

ON

2006 MY LX470 [01/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0126/27,B0127/27; Seat Belt Buckle Switch LH Circuit Malfunction

B0127/27

Seat Belt Buckle Switch LH Malfunction

1. Front seat inner belt assembly LH (Seat belt buckle switch LH)

2. Center airbag sensor assembly

3. Floor wire

*2

ON

2006 MY LX470 [01/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B0126/27,B0127/27; Seat Belt Buckle Switch LH Circuit Malfunction

B1153/25

Seat Position Airbag Sensor Circuit Malfunction

1. Seat position sensor assembly

2. Center airbag sensor assembly

3. No. 2 floor wire

*1

ON

2006 MY LX470 [01/2006 -        ]; SUPPLEMENTAL RESTRAINT SYSTEM: AIRBAG SYSTEM: B1153/25; Seat Position Airbag Sensor Circuit Malfunction