Dtc B1905/74 Short In Front Passenger Side Pretensioner Squib Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FRONT SEAT OUTER BELT ASSEMBLY (FRONT PASSENGER SIDE PRETENSIONER SQUIB)

CHECK CONNECTOR

CHECK WIRE HARNESS (FRONT PASSENGER SIDE PRETENSIONER SQUIB CIRCUIT)

CHECK CENTER AIRBAG SENSOR ASSEMBLY

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

HINT:

1. Perform the simulation method by selecting the "check mode" (signal check) with the intelligent tester (CAMRY_ACV40 RM000000XFF00YX.html).
   
2. After selecting the "check mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road (CAMRY_ACV40 RM000000XFF00YX.html).
   

1. Turn the ignition switch to the LOCK position.
   

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

3. Disconnect the connectors from the front seat outer belt assembly (passenger side).
   

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

   CAUTION:

   Never connect a tester to the front seat outer belt assembly (front passenger side pretensioner squib) for measurement, as this may lead to a serious injury due to airbag deployment.

   NOTICE:

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

SST

09843-18061

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

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

7. Clear the DTCs stored in the memory (CAMRY_ACV40 RM000000XFE059X.html).
   

8. Turn the ignition switch to the LOCK position.
   

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

10. Check for DTCs (CAMRY_ACV40 RM000000XFE059X.html).
    

    OK:

    DTC B1905, B1906, B1907, B1908, or 74 is not output.
    

    HINT:

    Codes other than DTC B1905, B1906, B1907, B1908, and 74 may be output at this time, but they are not related to this check.

1. Turn the ignition switch to the LOCK position.
   

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

3. Disconnect the SST from connector C.
   

4. Check that the wire harness connector (on the front seat outer belt assembly (passenger side) side) is not damaged.
   

   OK:

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

Result:

Result	Proceed to
OK	A
NG (for LHD)	B
NG (for RHD)	C

1. Disconnect the connectors from the center airbag sensor assembly.
   

2. Check for a short to B+ in the circuit.
   

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

   2. Turn the ignition switch to the ON position.
      

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

      Standard voltage:

      for LHD:

      Tester connection	Condition	Specified condition
      O8-1 (R+) - Body ground	Ignition switch ON	Below 1 V
      O8-2 (R-) - Body ground	Ignition switch ON	Below 1 V

      for RHD:

      Tester connection	Condition	Specified condition
      N8-1 (L+) - Body ground	Ignition switch ON	Below 1 V
      N8-2 (L-) - Body ground	Ignition switch ON	Below 1 V

Result:

Result	Proceed to
OK	A
NG (for LHD)	B
NG (for RHD)	C

3. Check for an open in the circuit.
   

   1. Turn the ignition switch to the LOCK position.
      

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

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

      Standard resistance:

      for LHD:

      Tester connection	Condition	Specified condition
      O8-1 (R+) - O8-2 (R-)	Always	Below 1 Ω

      for RHD:

      Tester connection	Condition	Specified condition
      N8-1 (L+) - N8-2 (L-)	Always	Below 1 Ω

Result:

Result	Proceed to
OK	A
NG (for LHD)	B
NG (for RHD)	C

4. Check for a short to ground in the circuit.
   

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

      Standard resistance:

      for LHD:

      Tester connection	Condition	Specified condition
      O8-1 (R+) - Body ground	Always	1 MΩ or higher
      O8-2 (R-) - Body ground	Always	1 MΩ or higher

      for RHD:

      Tester connection	Condition	Specified condition
      N8-1 (L+) - Body ground	Always	1 MΩ or higher
      N8-2 (L-) - Body ground	Always	1 MΩ or higher

Result:

Result	Proceed to
OK	A
NG (for LHD)	B
NG (for RHD)	C

5. Check for a short in the circuit.
   

   1. Release the activation prevention mechanism built into connector B (CAMRY_ACV40 RM000000XFD050X.html).
      

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

      Standard resistance:

      for LHD:

      Tester connection	Condition	Specified condition
      O8-1 (R+) - O8-2 (R-)	Always	1 MΩ or higher

      for RHD:

      Tester connection	Condition	Specified condition
      N8-1 (L+) - N8-2 (L-)	Always	1 MΩ or higher

Result:

Result	Proceed to
OK	A
NG (for LHD)	B
NG (for RHD)	C

1. Connect the connectors to the front seat outer belt assembly (passenger side) and the center airbag sensor assembly.
   

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

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

4. Clear the DTCs stored in the memory (CAMRY_ACV40 RM000000XFE059X.html).
   

5. Turn the ignition switch to the LOCK position.
   

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

7. Check for DTCs (CAMRY_ACV40 RM000000XFE059X.html).
   

   OK:

   DTC B1905, B1906, B1907, B1908, or 74 is not output.
   

   HINT:

   Codes other than DTC B1905, B1906, B1907, B1908, and 74 may be output at this time, but they are not related to this check.