Dtc B1825/56 Short In Front Passenger Side - Side Squib Circuit

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FRONT SEAT SIDE AIRBAG ASSEMBLY (FRONT PASSENGER SIDE - SIDE SQUIB)

CHECK WIRE HARNESS (FRONT PASSENGER SIDE - SIDE 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 connector from the front seat side airbag assembly (front passenger side).
   

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

   CAUTION:

   Never connect a tester to the front seat side airbag assembly (front passenger side - side 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 B1825, B1826, B1827, B1828, or 56 is not output.
    

    HINT:

    Codes other than DTC B1825, B1826, B1827, B1828, and 56 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. Disconnect the connectors from the center airbag sensor assembly.
   

5. 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
      OY1-1 (SFR+) - Body ground	Ignition switch ON	Below 1 V
      OY1-2 (SFR-) - Body ground	Ignition switch ON	Below 1 V

      for RHD:

      Tester connection	Condition	Specified condition
      NZ1-1 (SFL+) - Body ground	Ignition switch ON	Below 1 V
      NZ1-2 (SFL-) - Body ground	Ignition switch ON	Below 1 V

Result:

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

6. 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
      OY1-1 (SFR+) - OY1-2 (SFR-)	Always	Below 1 Ω

      for RHD:

      Tester connection	Condition	Specified condition
      NZ1-1 (SFL+) - NZ1-2 (SFL-)	Always	Below 1 Ω

Result:

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

7. 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
      OY1-1 (SFR+) - Body ground	Always	1 MΩ or higher
      OY1-2 (SFR-) - Body ground	Always	1 MΩ or higher

      for RHD:

      Tester connection	Condition	Specified condition
      NZ1-1 (SFL+) - Body ground	Always	1 MΩ or higher
      NZ1-2 (SFL-) - Body ground	Always	1 MΩ or higher

Result:

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

8. 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
      OY1-1 (SFR+) - OY1-2 (SFR-)	Always	1 MΩ or higher

      for RHD:

      Tester connection	Condition	Specified condition
      NZ1-1 (SFL+) - NZ1-2 (SFL-)	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 side airbag 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 B1825, B1826, B1827, B1828, or 56 is not output.
   

   HINT:

   Codes other than DTC B1825, B1826, B1827, B1828, and 56 may be output at this time, but they are not related to this check.