Dtc B1835/58 Short In Curtain Shield Squib Lh Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK VEHICLE TYPE

CHECK CURTAIN SHIELD AIRBAG LH (CURTAIN SHIELD SQUIB LH)

CHECK CONNECTOR

CHECK NO. 2 FLOOR WIRE (CURTAIN SHIELD AIRBAG LH - CENTER AIRBAG SENSOR)

CHECK CENTER AIRBAG SENSOR

CHECK CURTAIN SHIELD AIRBAG LH (CURTAIN SHIELD SQUIB LH)

CHECK CONNECTOR

CHECK NO. 2 FLOOR WIRE (CURTAIN SHIELD AIRBAG LH - CENTER AIRBAG SENSOR)

CHECK CENTER AIRBAG SENSOR

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. After turning the ignition switch off, waiting time may be required before disconnecting the cable from the battery terminal. Therefore, make sure to read the disconnecting the cable from the battery terminal notice before proceeding with work (LandCruiser RM000003YMD00TX.html).
   
2. When disconnecting the cable from the negative (-) battery terminal while performing repairs, some systems need to be initialized after the cable is reconnected (LandCruiser RM000003YMF011X.html).
   

HINT:

To perform the simulation method, enter check mode (signal check) with the intelligent tester (LandCruiser RM000000XFF0H0X.html), and then wiggle each connector of the airbag system or drive the vehicle on various types of road (LandCruiser RM000000XFD0N3X.html).

1. Check vehicle type.
   

   Result

   Result	Proceed to
   for 3 Door	A
   for 5 Door	B

1. Turn the ignition switch off.
   

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

3. Disconnect the connectors from the curtain shield airbag LH.
   

4. Connect the black wire side of SST (resistance: 2.1 Ω) to connector C.
   

   CAUTION:

   Never connect the tester to the curtain shield airbag LH (curtain shield squib LH) for measurement, as this may lead to a serious injury due to airbag deployment.

   NOTICE:

   1. Do not forcibly insert SST into the terminals of the connector when connecting SST.
      
   2. Insert SST straight into the terminals of the connector.
      

SST

09843-18061

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

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Clear the DTCs (LandCruiser RM000000XFE0NGX.html).
   

8. Turn the ignition switch off.
   

9. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

10. Check for DTCs (LandCruiser RM000000XFE0NGX.html).
    

    OK:

    DTC B1835, B1836, B1837 or B1838 is not output.
    

    HINT:

    Codes other than DTC B1835, B1836, B1837 and B1838 may be output at this time, but they are not related to this check.

    Text in Illustration

    *1	Curtain Shield Squib LH
    *2	Center Airbag Sensor
    *3	Connector C
    *4	SST
    *a	Front view of wire harness connector (to Curtain Shield Squib LH)

1. Turn the ignition switch off.
   

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

3. Disconnect SST from connector C.
   

4. Check that the floor wire connectors (on the curtain shield airbag LH side) are not damaged.
   

   OK:

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

   Text in Illustration

   *1	Curtain Shield Squib LH
   *2	Center Airbag Sensor

1. Disconnect the connectors from the center airbag sensor.
   

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

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   R5-1 (ICL+) - Body ground	Ignition switch ON	Below 1 V
   R5-2 (ICL-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
   

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

6. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   R5-1 (ICL+) - R5-2 (ICL-)	Always	Below 1 Ω

7. Release the activation prevention mechanism built into connector B (LandCruiser RM000000XFD0N3X.html).
   

8. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   R5-1 (ICL+) - R5-2 (ICL-)	Always	1 MΩ or higher
   R5-1 (ICL+) - Body ground	Always	1 MΩ or higher
   R5-2 (ICL-) - Body ground	Always	1 MΩ or higher

1. Connect the connectors to the curtain shield airbag LH and center airbag sensor.
   

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

3. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

4. Clear the DTCs (LandCruiser RM000000XFE0NGX.html).
   

5. Turn the ignition switch off.
   

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Check for DTCs (LandCruiser RM000000XFE0NGX.html).
   

   OK:

   DTC B1835, B1836, B1837 or B1838 is not output.
   

   HINT:

   Codes other than DTC B1835, B1836, B1837 and B1838 may be output at this time, but they are not related to this check.

   Text in Illustration

   *1	Curtain Shield Squib LH
   *2	Center Airbag Sensor

1. Turn the ignition switch off.
   

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

3. Disconnect the connectors from the curtain shield airbag LH.
   

4. Connect the white wire side of SST (resistance: 2.1 Ω) to connector C.
   

   CAUTION:

   Never connect the tester to the curtain shield airbag LH (curtain shield squib LH) for measurement, as this may lead to a serious injury due to airbag deployment.

   NOTICE:

   1. Do not forcibly insert SST into the terminals of the connector when connecting SST.
      
   2. Insert SST straight into the terminals of the connector.
      

SST

09843-18061

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

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Clear the DTCs (LandCruiser RM000000XFE0NGX.html).
   

8. Turn the ignition switch off.
   

9. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

10. Check for DTCs (LandCruiser RM000000XFE0NGX.html).
    

    OK:

    DTC B1835, B1836, B1837 or B1838 is not output.
    

    HINT:

    Codes other than DTC B1835, B1836, B1837 and B1838 may be output at this time, but they are not related to this check.

    Text in Illustration

    *1	Curtain Shield Squib LH
    *2	Center Airbag Sensor
    *3	Connector C
    *4	SST
    *a	Front view of wire harness connector (to Curtain Shield Squib LH)

1. Turn the ignition switch off.
   

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

3. Disconnect SST from connector C.
   

4. Check that the floor wire connectors (on the curtain shield airbag LH side) are not damaged.
   

   OK:

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

   Text in Illustration

   *1	Curtain Shield Squib LH
   *2	Center Airbag Sensor

1. Disconnect the connectors from the center airbag sensor.
   

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

3. Measure the voltage according to the value(s) in the table below.
   

   Standard Voltage:

   Tester Connection	Switch Condition	Specified Condition
   R35-1 (ICL+) - Body ground	Ignition switch ON	Below 1 V
   R35-2 (ICL-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
   

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

6. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   R35-1 (ICL+) - R35-2 (ICL-)	Always	Below 1 Ω

7. Release the activation prevention mechanism built into connector B (LandCruiser RM000000XFD0N3X.html).
   

8. Measure the resistance according to the value(s) in the table below.
   

   Standard Resistance:

   Tester Connection	Condition	Specified Condition
   R35-1 (ICL+) - R35-2 (ICL-)	Always	1 MΩ or higher
   R35-1 (ICL+) - Body ground	Always	1 MΩ or higher
   R35-2 (ICL-) - Body ground	Always	1 MΩ or higher

1. Connect the connectors to the curtain shield airbag LH and center airbag sensor.
   

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

3. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

4. Clear the DTCs (LandCruiser RM000000XFE0NGX.html).
   

5. Turn the ignition switch off.
   

6. Turn the ignition switch to ON, and wait for at least 60 seconds.
   

7. Check for DTCs (LandCruiser RM000000XFE0NGX.html).
   

   OK:

   DTC B1835, B1836, B1837 or B1838 is not output.
   

   HINT:

   Codes other than DTC B1835, B1836, B1837 and B1838 may be output at this time, but they are not related to this check.

   Text in Illustration

   *1	Curtain Shield Squib LH
   *2	Center Airbag Sensor