DTC B1835/58: Short in Curtain Shield Squib LH Circuit; DTC B1836/58: Open in Curtain Shield Squib LH Circuit; DTC B1837/58: Short to GND in Curtain Shield Squib LH Circuit; DTC B1838/58: Short to B+ in Curtain Shield Squib LH Circuit: Procedure

1. Turn the ignition switch off.
   Fig 1: Checking Curtain Shield Airbag LH (Curtain Shield Squib LH)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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.
   WARNING:

   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.

   NOTE:

   • Do not forcibly insert SST into the terminals of the connector when connecting SST.
   • 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. Refer to DTC CHECK / CLEAR .
8. Turn the ignition switch off.
9. Turn the ignition switch to ON, and wait for at least 60 seconds.
10. Check for DTCs. Refer to DTC CHECK / CLEAR .

    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)

NG → See step   2 

OK → See step   5 

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. Disconnect the connectors from the center airbag sensor.
5. Check that the connectors (on the center airbag sensor side and 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.

   Fig 2: Checking Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Curtain Shield Squib LH
   *2	Floor Wire
   *3	Center Airbag Sensor

NG → REPLACE FLOOR WIRE 

OK: Go to next step 

1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
   Fig 3: Checking Floor Wire (Curtain Shield Airbag LH - Center Airbag Sensor)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   H8-1 (ICL+) - Body ground	Ignition switch ON	Below 1 V
   H8-2 (ICL-) - Body ground	Ignition switch ON	Below 1 V

3. Turn the ignition switch off.
4. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
5. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H8-1 (ICL+) - H8-2 (ICL-)	Always	Below 1 Ω

6. Release the activation prevention mechanism built into connector B. Refer to DIAGNOSIS SYSTEM .
7. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   H8-1 (ICL+) - H8-2 (ICL-)	Always	1 MΩ or higher
   H8-1 (ICL+) - Body ground	Always	1 MΩ or higher
   H8-2 (ICL-) - Body ground	Always	1 MΩ or higher

   TEXT IN ILLUSTRATION
   
   

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

NG → REPLACE FLOOR WIRE 

OK: Go to next step 

1. Connect the connectors to the curtain shield airbag LH and center airbag sensor.
   Fig 4: Checking Center Airbag Sensor

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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. Refer to DTC CHECK / CLEAR .
5. Turn the ignition switch off.
6. Turn the ignition switch to ON, and wait for at least 60 seconds.
7. Check for DTCs. Refer to DTC CHECK / CLEAR .

   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

NG → See step   6 

OK → See step   7