Dtc B1830/57 Short In Curtain Shield Squib Rh Circuit

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Supplemental Restraint Systems. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK CURTAIN SHIELD AIRBAG RH (CURTAIN SHIELD SQUIB RH)

CHECK CONNECTOR

CHECK NO. 2 FLOOR WIRE (CURTAIN SHIELD AIRBAG RH CIRCUIT)

CHECK CENTER AIRBAG SENSOR

DTC B1830/57 Short in Curtain Shield Squib RH Circuit

DTC B1831/57 Open in Curtain Shield Squib RH Circuit

DTC B1832/57 Short to GND in Curtain Shield Squib RH Circuit

DTC B1833/57 Short to B+ in Curtain Shield Squib RH Circuit


DESCRIPTION

The curtain shield squib RH circuit consists of the center airbag sensor and the curtain shield airbag RH.
The circuit instructs the SRS to deploy when deployment conditions are met.
These DTCs are stored when a malfunction is detected in the curtain shield squib RH circuit.

DTC Code
DTC Detection Condition
Trouble Area
B1830/57
When one of the following conditions is met:
  1. The center airbag sensor receives a line short circuit signal 5 times in the curtain shield squib RH circuit during the primary check.
  2. A curtain shield squib RH malfunction.
  3. A center airbag sensor malfunction.
  1. No. 2 floor wire
  2. Curtain shield airbag assembly RH (Curtain shield squib RH)
  3. Center airbag sensor assembly
B1831/57
When one of the following conditions is met:
  1. The center airbag sensor receives an open circuit signal in the curtain shield squib RH circuit for 2 seconds.
  2. A curtain shield squib RH malfunction.
  3. A center airbag sensor malfunction.
  1. No. 2 floor wire
  2. Curtain shield airbag assembly RH (Curtain shield squib RH)
  3. Center airbag sensor assembly
B1832/57
When one of the following conditions is met:
  1. The center airbag sensor receives a short circuit to ground signal in the curtain shield squib RH circuit for 0.5 seconds.
  2. A curtain shield squib RH malfunction.
  3. A center airbag sensor malfunction.
  1. No. 2 floor wire
  2. Curtain shield airbag assembly RH (Curtain shield squib RH)
  3. Center airbag sensor assembly
B1833/57
When one of the following conditions is met:
  1. The center airbag sensor receives a short circuit to B+ signal in the curtain shield squib RH circuit for 0.5 seconds.
  2. A curtain shield squib RH malfunction.
  3. A center airbag sensor malfunction.
  1. No. 2 floor wire
  2. Curtain shield airbag assembly RH (Curtain shield squib RH)
  3. Center airbag sensor assembly

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Supplemental Restraint Systems.Airbag System. Dtc B1830/57 Short In Curtain Shield Squib Rh Circuit


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 (Click here).
  2. When disconnecting the cable, some systems need to be initialized after the cable is reconnected (Click here).
  3. After replacing the center airbag sensor assembly, refer to initialization (Click here).
HINT:
To perform the simulation method, enter the check mode (signal check) with the intelligent tester (Click here), and then wiggle each connector of the airbag system or drive the vehicle on various type of road (Click here).
1.CHECK CURTAIN SHIELD AIRBAG RH (CURTAIN SHIELD SQUIB RH)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Supplemental Restraint Systems.Airbag System. Dtc B1830/57 Short In Curtain Shield Squib Rh Circuit

  1. Turn the ignition switch off.

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

  1. Disconnect the connector from the curtain shield airbag RH.

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

    CAUTION:
    Never connect the tester to the curtain shield airbag RH (curtain shield squib RH) 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

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

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

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

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

  1. Check for DTCs (Click here).

    OK:
    DTC B1830, B1831, B1832 or B1833 is not output.
    HINT:
    Codes other than DTC B1830, B1831, B1832 and B1833 may be output at this time, but they are not related to this check.


NG
Go to step 2
OK

REPLACE CURTAIN SHIELD AIRBAG ASSEMBLY RH (Click here)

2.CHECK CONNECTOR

  1. Turn the ignition switch off.

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

  1. Disconnect SST from connector C.

  1. Check that the No. 2 floor wire connector (on the curtain shield airbag RH side) is not damaged.

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


NG
REPLACE NO. 2 FLOOR WIRE
OK


3.CHECK NO. 2 FLOOR WIRE (CURTAIN SHIELD AIRBAG RH CIRCUIT)


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Supplemental Restraint Systems.Airbag System. Dtc B1830/57 Short In Curtain Shield Squib Rh Circuit

  1. Disconnect the connectors from the center airbag sensor.

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

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    L17-1 (ICR+) - Body ground
    		Ignition switch ON
    		Below 1 V
    L17-2 (ICR-) - Body ground
    		Ignition switch ON
    		Below 1 V

  1. Turn the ignition switch off.

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

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L17-1 (ICR+) - L17-2 (ICR-)
    		Always
    		Below 1 Ω

  1. Release the activation prevention mechanism built into connector B (Click here).

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L17-1 (ICR+) - L17-2 (ICR-)
    		Always
    		1 MΩ or higher
    L17-1 (ICR+) - Body ground
    		Always
    		1 MΩ or higher
    L17-2 (ICR-) - Body ground
    		Always
    		1 MΩ or higher


NG
REPLACE NO. 2 FLOOR WIRE
OK


4.CHECK CENTER AIRBAG SENSOR


    Land Cruiser. Urj200, 202 Grj200 Vdj200.Supplemental Restraint Systems.Airbag System. Dtc B1830/57 Short In Curtain Shield Squib Rh Circuit

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

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

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

  1. Clear the DTCs (Click here).

  1. Turn the ignition switch off.

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

  1. Check for DTCs (Click here).

    OK:
    DTC B1830, B1831, B1832 or B1833 is not output.
    HINT:
    Codes other than DTC B1830, B1831, B1832 and B1833 may be output at this time, but they are not related to this check.


NG
REPLACE CENTER AIRBAG SENSOR ASSEMBLY (Click here)
OK

USE SIMULATION METHOD TO CHECK (Click here)