DTC B1693/81: Door Side Airbag Sensor RH Initialization Incomplete: Procedure

1. Turn the ignition switch to ON, and wait for at least 60 seconds.
2. Turn the ignition switch off.
3. Turn the ignition switch to ON, and wait for at least 60 seconds.
4. Check the past DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC B1692/81 is output	A
   DTC B1697/82 is output	B
   DTC B1692/81 and B1697/82 are not output	C

A → See step   10 

B → See step   11 

C: Go to next step 

1. Turn the ignition switch off.
2. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
3. Check that the connectors are properly connected to the center airbag sensor assembly and side airbag sensor RH (for front side).

   OK

   The connectors are properly connected.

NG → CONNECT CONNECTORS PROPERLY 

OK: Go to next step 

1. Disconnect the connectors from the center airbag sensor assembly and side airbag sensor RH (for front side).
2. Check that the connectors (on the center airbag sensor assembly side and side airbag sensor RH (for front side) are not damaged.

   OK

   The connectors are not deformed or damaged.

NG → REPLACE HARNESS AND CONNECTOR 

OK: Go to next step 

Fig 1: Checking Side Airbag Sensor RH (For Front Side) Circuit [Center Airbag Sensor - Side Airbag Sensor RH (For Front Side)]

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
2. Turn the ignition switch to ON.
3. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   E8-4 (BBR+) - Body ground	Ignition switch ON	Below 1 V
   E8-3 (BBR-) - Body ground	Ignition switch ON	Below 1 V

4. Turn the ignition switch off.
5. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
6. Using a service wire, connect terminals 17 and 18 of connector B.
   NOTE:

   Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E8-4 (BBR+) - E8-3 (BBR-)	Always	Below 1 Ω

8. Disconnect the service wire from connector B.
9. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E8-4 (BBR+) - E8-3 (BBR-)	Always	1 MΩ or higher
   E8-4 (BBR+) - Body ground	Always	1 MΩ or higher
   E8-3 (BBR-) - Body ground	Always	1 MΩ or higher

NG → See step   8 

OK: Go to next step 

Fig 2: Checking Side Airbag Sensor RH (For Rear Side) Circuit

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the connectors from the side airbag sensor RH (for front side) and side airbag sensor RH (for rear side).
2. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
3. Turn the ignition switch to ON.
4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   G16-4 (BCR+) - Body ground	Ignition switch ON	Below 1 V
   G16-3 (BCR-) - Body ground	Ignition switch ON	Below 1 V

5. Turn the ignition switch off.
6. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
7. Using a service wire, connect terminals 2 and 1 of connector E.
   NOTE:

   Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   G16-4 (BCR+) - G16-3 (BCR-)	Always	Below 1 Ω

9. Disconnect the service wire from connector E.
10. Measure the resistance according to the value(s) in the table below.

    Standard Resistance

    Tester Connection	Condition	Specified Condition
    G16-4 (BCR+) - G16-3 (BCR-)	Always	1 MΩ or higher
    G16-4 (BCR+) - Body ground	Always	1 MΩ or higher
    G16-3 (BCR-) - Body ground	Always	1 MΩ or higher

NG → See step   9 

OK: Go to next step 

Fig 3: Checking Side Airbag Sensor RH (For Front Side)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Interchange the side airbag sensor RH (for front side) with side airbag sensor LH (for front side) and connect the connectors to them.
2. Connect the negative (-) terminal cable to the battery, 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 stored in the memory. Refer to DTC CHECK / CLEAR .
5. Turn the ignition switch off.
6. Turn the ignition switch to ON, and wait for at least 90 seconds.
7. Check for DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC B1698/82 is output	A
   DTC B1693/81 and B1698/82 are not output	B
   DTC B1693/81 is output	C

   TEXT IN ILLUSTRATION
   
   

   *1	Side Airbag Sensor LH (for Front Side)
   *2	Center Airbag Sensor Assembly

8. Turn the ignition switch off.
9. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
10. Return the side airbag sensor RH (for front side) and side airbag sensor LH (for front side) to their original positions and connect the connectors to them.

A → See step   12 

B → See step   13 

C: Go to next step 

Fig 4: Checking Side Airbag Sensor RH (For Rear Side)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Interchange the side airbag sensor RH (for rear side) with side airbag sensor LH (for rear side) and connect the connectors to them.
2. Connect the negative (-) terminal cable to the battery, 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 stored in the memory. Refer to DTC CHECK / CLEAR .
5. Turn the ignition switch off.
6. Turn the ignition switch to ON, and wait for at least 90 seconds.
7. Check for DTCs. Refer to DTC CHECK / CLEAR .
   RESULT
   
   

   Result	Proceed to
   DTC B1693/81 is output	A
   DTC B1698/82 is output	B
   DTC B1693/81 and B1698/82 are not output	C

   TEXT IN ILLUSTRATION
   
   

   *1	Side Airbag Sensor LH (for Rear Side)
   *2	Side Airbag Sensor RH (for Front Side)

   HINT: 

   DTCs other than B1693/81 and B1698/82 may be output at this time, but they are not related to this check.

8. Turn the ignition switch off.
9. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
10. Return the side airbag sensor RH (for rear side) and side airbag sensor LH (for rear side) to their original positions and connect the connectors to them.

A → See step   15 

B → See step   14 

C → See step   13 

Fig 5: Checking Floor Wire (Center Airbag Sensor - Front Door Wire RH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the floor wire connector from the front door wire RH.
2. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
3. Turn the ignition switch to ON.
4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   EG1-1 (BBR+) - Body ground	Ignition switch ON	Below 1 V
   EG1-2 (BBR-) - Body ground	Ignition switch ON	Below 1 V

5. Turn the ignition switch off.
6. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
7. Using a service wire, connect terminals 17 and 18 of connector B.
   NOTE:

   Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   EG1-1 (BBR+) - EG1-2 (BBR-)	Always	Below 1 Ω

9. Disconnect the service wire from connector B.
10. Measure the resistance according to the value(s) in the table below.

    Standard Resistance

    Tester Connection	Condition	Specified Condition
    EG1-1 (BBR+) - EG1-2 (BBR-)	Always	1 MΩ or higher
    EG1-1 (BBR+) - Body ground	Always	1 MΩ or higher
    EG1-2 (BBR-) - Body ground	Always	1 MΩ or higher

NG → REPLACE FLOOR WIRE 

OK → REPLACE FRONT DOOR WIRE RH 

Fig 6: Checking Floor Wire (Side Airbag Sensor RH (Rear Side) - Front Door Wire RH)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

1. Disconnect the floor wire connector from the front door wire RH.
2. Connect the negative (-) terminal cable to the battery, and wait for at least 2 seconds.
3. Turn the ignition switch to ON.
4. Measure the voltage according to the value(s) in the table below.

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   EG1-3 (BCR+) - Body ground	Ignition switch ON	Below 1 V
   EG1-4 (BCR-) - Body ground	Ignition switch ON	Below 1 V

5. Turn the ignition switch off.
6. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
7. Using a service wire, connect terminals 3 and 4 of connector B.
   NOTE:

   Do not forcibly insert a service wire into the terminals of the connector when connecting the wire.

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

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   EG1-3 (BCR+) - EG1-4 (BCR-)	Always	Below 1 Ω

9. Disconnect the service wire from connector B.
10. Measure the resistance according to the value(s) in the table below.

    Standard Resistance

    Tester Connection	Condition	Specified Condition
    EG1-3 (BCR+) - EG1-4 (BCR-)	Always	1 MΩ or higher
    EG1-3 (BCR+) - Body ground	Always	1 MΩ or higher
    EG1-4 (BCR-) - Body ground	Always	1 MΩ or higher

NG → REPLACE FLOOR WIRE 

OK → REPLACE FRONT DOOR WIRE RH