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Home >> Lexus >> 2021 >> LC 500 2D Coupe >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Airbag System - Diagnostic Codes (Coupe) (2 Of 5) >> Airbag System >> DTC B1633/81: Rear Airbag Sensor Assembly RH Initialization Incomplete; DTC B1638/82: Rear Airbag Sensor Assembly LH Initialization Incomplete [03/2017 - 04/2020] >> Procedure

DTC B1633/81: Rear Airbag Sensor Assembly RH Initialization Incomplete; DTC B1638/82: Rear Airbag Sensor Assembly LH Initialization Incomplete [03/2017 - 04/2020]: Procedure

  1. CHECK PAST DTC 
    1. Turn the engine switch on (IG), and wait for at least 60 seconds.
    2. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1632/81 and B1637/82 are not output
      DTC B1632/81 is output
      DTC B1637/82 is output

    Result: 

    DTC B1632/81 is output 

    GO TO DTC B1632/81. Refer to  DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1632/81: Lost Communication with Rear Airbag Sensor RH; DTC B1635/24: Rear Airbag Sensor LH Circuit Malfunction; DTC B1637/82: Lost Communication with Rear Airbag Sensor LH [03/2017 - 04/2020] 

    Result: 

    DTC B1637/82 is output 

    GO TO DTC B1637/82. Refer to  DTC B1630/23: Rear Airbag Sensor RH Circuit Malfunction; DTC B1632/81: Lost Communication with Rear Airbag Sensor RH; DTC B1635/24: Rear Airbag Sensor LH Circuit Malfunction; DTC B1637/82: Lost Communication with Rear Airbag Sensor LH [03/2017 - 04/2020] 

    Result: 

    DTC B1632/81 and B1637/82 are not output 

    See step  2

  2. CHECK DTC 
    1. Turn the engine switch off.

      HINT: 

      If a communication error occurs, DTCs for both the LH and RH sides will be stored simultaneously. The malfunctioning area can be identified by turning the engine switch off and then on (IG) again.

    2. Turn the engine switch on (IG), and wait for at least 60 seconds.
    3. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1633/81 is output
      DTC B1638/82 is output
      DTC B1633/81 and B1638/82 are not output

      HINT: 

      Codes other than DTC B1633/81 and B1638/82 may be output at this time, but they are not related to this check.

    Result: 

    DTC B1638/82 is output 

    See step  12

    Result: 

    DTC B1633/81 and B1638/82 are not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

    Result: 

    DTC B1633/81 is output 

    See step  3

  3. CHECK CONNECTION OF CONNECTORS 
    1. Turn the engine switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Check that the connectors are properly connected to the airbag ECU assembly and rear airbag sensor RH.

      Result

      Proceed to
      The connectors are properly connected
      The connectors are not properly connected

    Result: 

    The connectors are not properly connected 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    The connectors are properly connected 

    See step  4

  4. CHECK CONNECTORS 
    1. Disconnect the connectors from the airbag ECU assembly and rear airbag sensor RH.
    2. Check that the connectors (on the airbag ECU assembly side and rear airbag sensor RH side) are not damaged.
      GTY771009Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor RH
      *2 Airbag ECU Assembly
      *3 Floor Wire

      Result

      Proceed to
      The connectors are not deformed or damaged
      The connectors are deformed or damaged

    Result: 

    The connectors are deformed or damaged 

    REPLACE FLOOR WIRE 

    Result: 

    The connectors are not deformed or damaged 

    See step  5

  5. CHECK FLOOR WIRE 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
      GTY806212Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor RH
      *2 Airbag ECU Assembly
      *3 Floor Wire
      *4 Service Wire
      *a Front view of wire harness connector
      (to Rear Airbag Sensor RH)
      *b Front view of wire harness connector
      (to Airbag ECU Assembly)
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      X26-4 (BCR+) - Body ground Engine switch on (IG) Below 1 V
      X26-3 (BCR-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Using a service wire, connect terminals 25 (BBR+) and 26 (BBR-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      X26-4 (BCR+) - X26-3 (BCR-) 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
      X26-4 (BCR+) - X26-3 (BCR-) Always 1 MΩ or higher
      X26-4 (BCR+) - Body ground Always 1 MΩ or higher
      X26-3 (BCR-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FLOOR WIRE 

    Result: 

    OK 

    See step  6

  6. CHECK REAR AIRBAG SENSOR RH 
    1. Connect the connectors to the airbag ECU assembly.
      GTY505878Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor LH
      *2 Airbag ECU Assembly
    2. Interchange the side rear sensor RH with LH and connect the connectors to them.
    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    4. Turn the engine switch on (IG), and wait for at least 60 seconds.
    5. Clear the DTCs stored in memory.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Clear DTCs 

    6. Turn the engine switch off.
    7. Turn the engine switch on (IG), and wait for at least 60 seconds.
    8. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1638/82 is output
      DTC B1633/81 is output
      DTC B1633/81 and B1638/82 are not output

      HINT: 

      Codes other than DTC B1633/81 and B1638/82 may be output at this time, but they are not related to this check.

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

    Result: 

    DTC B1638/82 is output 

    REPLACE REAR AIRBAG SENSOR RH. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTC B1633/81 and B1638/82 are not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

    Result: 

    DTC B1633/81 is output 

    See step  7

  7. CHECK CONNECTION OF CONNECTOR 
    1. Check that the connector is properly connected to the door side airbag sensor RH.

      Result

      Proceed to
      The connector is properly connected
      The connector is not properly connected

    Result: 

    The connector is not properly connected 

    CONNECT CONNECTOR PROPERLY 

    Result: 

    The connector is properly connected 

    See step  8

  8. CHECK CONNECTOR 
    1. Disconnect the connectors from the door side airbag sensor RH and rear airbag sensor RH.
    2. Check that the connector (on the door side airbag sensor RH side) is not damaged.
      GTY516344Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor RH
      *2 Rear Airbag Sensor RH
      *3 Front Door Wire RH
      *4 Floor Wire

      Result

      Proceed to
      The connector is not deformed or damaged
      The connector is deformed or damaged

    Result: 

    The connector is deformed or damaged 

    REPLACE FRONT DOOR WIRE RH 

    Result: 

    The connector is not deformed or damaged 

    See step  9

  9. CHECK DOOR SIDE AIRBAG SENSOR RH CIRCUIT 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
      GTY818019Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor RH
      *2 Rear Airbag Sensor RH
      *3 Front Door Wire RH
      *4 Floor Wire
      *5 Service Wire
      *a Front view of wire harness connector
      (to Door Side Airbag Sensor RH)
      *b Front view of wire harness connector
      (to Rear Airbag Sensor RH)
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      R7-2 (BDR+) - Body ground Engine switch on (IG) Below 1 V
      R7-1 (BDR-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Using a service wire, connect terminals 1 (BBR+) and 2 (BBR-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      R7-2 (BDR+) - R7-1 (BDR-) 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
      R7-2 (BDR+) - R7-1 (BDR-) Always 1 MΩ or higher
      R7-2 (BDR+) - Body ground Always 1 MΩ or higher
      R7-1 (BDR-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  11

    Result: 

    OK 

    See step  10

  10. CHECK DTC 
    1. Connect the connectors to the door side airbag sensor RH and rear airbag sensor RH.
      GTY373590Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor RH
      *2 Rear Airbag Sensor RH
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the engine switch on (IG), and wait for at least 60 seconds.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Clear DTCs 

    5. Turn the engine switch off.
    6. Turn the engine switch on (IG), and wait for at least 60 seconds.
    7. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1633/81 is output
      DTC B1633/81 is not output

      HINT: 

      Codes other than DTC B1633/81 may be output at this time, but they are not related to this check.

    Result: 

    DTC B1633/81 is output 

    REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTC B1633/81 is not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

  11. CHECK FLOOR WIRE 
    1. Disconnect the floor wire connector from the front door wire RH.
      GTY838370Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor RH
      *2 Rear Airbag Sensor RH
      *3 Front Door Wire RH
      *4 Floor Wire
      *5 Service Wire
      *a Front view of wire harness connector
      (to Front Door Wire RH)
      *b Front view of wire harness connector
      (to Rear Airbag Sensor RH)
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the engine switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      RX1-30 (BBR+) - Body ground Engine switch on (IG) Below 1 V
      RX1-48 (BBR-) - Body ground Engine switch on (IG) Below 1 V
    5. Turn the engine switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 1 (BBR+) and 2 (BBR-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      RX1-30 (BBR+) - RX1-48 (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
      RX1-30 (BBR+) - RX1-48 (BBR-) Always 1 MΩ or higher
      RX1-30 (BBR+) - Body ground Always 1 MΩ or higher
      RX1-48 (BBR-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FRONT DOOR WIRE RH 

    Result: 

    NG 

    REPLACE FLOOR WIRE 

  12. CHECK CONNECTION OF CONNECTORS 
    1. Turn the engine switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Check that the connectors are properly connected to the airbag ECU assembly and rear airbag sensor LH.

      Result

      Proceed to
      The connectors are properly connected
      The connectors are not properly connected

    Result: 

    The connectors are not properly connected 

    CONNECT CONNECTORS PROPERLY 

    Result: 

    The connectors are properly connected 

    See step  13

  13. CHECK CONNECTORS 
    1. Disconnect the connectors from the airbag ECU assembly and rear airbag sensor LH.
    2. Check that the connectors (on the airbag ECU assembly side and rear airbag sensor assembly LH side) are not damaged.
      GTY750510Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor LH
      *2 Airbag ECU Assembly
      *3 Floor Wire

      Result

      Proceed to
      The connectors are not deformed or damaged
      The connectors are deformed or damaged

    Result: 

    The connectors are deformed or damaged 

    REPLACE FLOOR WIRE 

    Result: 

    The connectors are not deformed or damaged 

    See step  14

  14. CHECK FLOOR WIRE 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
      GTY812323Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor LH
      *2 Airbag ECU Assembly
      *3 Floor Wire
      *4 Service Wire
      *a Front view of wire harness connector
      (to Rear Airbag Sensor LH)
      *b Front view of wire harness connector
      (to Airbag ECU Assembly)
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      X58-4 (BCL+) - Body ground Engine switch on (IG) Below 1 V
      X58-3 (BCL-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Using a service wire, connect terminals 32 (BBL+) and 31 (BBL-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      X58-4 (BCL+) - X58-3 (BCL-) 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
      X58-4 (BCL+) - X58-3 (BCL-) Always 1 MΩ or higher
      X58-4 (BCL+) - Body ground Always 1 MΩ or higher
      X58-3 (BCL-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE FLOOR WIRE 

    Result: 

    OK 

    See step  15

  15. CHECK REAR AIRBAG SENSOR LH 
    1. Connect the connectors to the airbag ECU assembly.
      GTY783623Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Rear Airbag Sensor RH
      *2 Airbag ECU Assembly
    2. Interchange the rear airbag sensor LH with RH and connect the connectors to them.
    3. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    4. Turn the engine switch on (IG), and wait for at least 60 seconds.
    5. Clear the DTCs stored in memory.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Clear DTCs 

    6. Turn the engine switch off.
    7. Turn the engine switch on (IG), and wait for at least 60 seconds.
    8. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1633/81 is output
      DTC B1638/82 is output
      DTC B1633/81 and B1638/82 are not output

      HINT: 

      Codes other than DTC B1633/81 and B1638/82 may be output at this time, but they are not related to this check.

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

    Result: 

    DTC B1633/81 is output 

    REPLACE REAR AIRBAG SENSOR LH. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTC B1633/81 and B1638/82 are not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

    Result: 

    DTC B1638/82 is output 

    See step  16

  16. CHECK CONNECTION OF CONNECTOR 
    1. Check that the connector is properly connected to the door side airbag sensor LH.

      Result

      Proceed to
      The connector is properly connected
      The connector is not properly connected

    Result: 

    The connector is not properly connected 

    CONNECT CONNECTOR PROPERLY 

    Result: 

    The connector is properly connected 

    See step  17

  17. CHECK CONNECTOR 
    1. Disconnect the connectors from the door side airbag sensor LH and rear airbag sensor LH.
    2. Check that the connector (on the door side airbag sensor LH side) is not damaged.
      GTY516347Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor LH
      *2 Rear Airbag Sensor LH
      *3 Front Door Wire LH
      *4 Floor Wire

      Result

      Proceed to
      The connector is not deformed or damaged
      The connector is deformed or damaged

    Result: 

    The connector is deformed or damaged 

    REPLACE FRONT DOOR WIRE LH 

    Result: 

    The connector is not deformed or damaged 

    See step  18

  18. CHECK DOOR SIDE AIRBAG SENSOR LH CIRCUIT 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
      GTY818017Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor LH
      *2 Rear Airbag Sensor LH
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Service Wire
      *a Front view of wire harness connector
      (to Door Side Airbag Sensor LH)
      *b Front view of wire harness connector
      (to Rear Airbag Sensor LH)
    2. Turn the engine switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      S7-2 (BDL+) - Body ground Engine switch on (IG) Below 1 V
      S7-1 (BDL-) - Body ground Engine switch on (IG) Below 1 V
    4. Turn the engine switch off.
    5. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    6. Using a service wire, connect terminals 1 (BBL+) and 2 (BBL-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      S7-2 (BDL+) - S7-1 (BDL-) 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
      S7-2 (BDL+) - S7-1 (BDL-) Always 1 MΩ or higher
      S7-2 (BDL+) - Body ground Always 1 MΩ or higher
      S7-1 (BDL-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  20

    Result: 

    OK 

    See step  19

  19. CHECK DTC 
    1. Connect the connectors to the door side airbag sensor LH and rear airbag sensor LH.
      GTY373590Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor LH
      *2 Rear Airbag Sensor LH
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the engine switch on (IG), and wait for at least 60 seconds.
    4. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Clear DTCs 

    5. Turn the engine switch off.
    6. Turn the engine switch on (IG), and wait for at least 60 seconds.
    7. Check for DTCs.

      Refer to DTC CHECK / CLEAR [03/2017 - 04/2020]

      Body Electrical > SRS Airbag > Trouble Codes 

      Result

      Proceed to
      DTC B1638/82 is output
      DTC B1638/82 is not output

      HINT: 

      Codes other than DTC B1638/82 may be output at this time, but they are not related to this check.

    Result: 

    DTC B1638/82 is output 

    REPLACE AIRBAG ECU ASSEMBLY. Refer to  REMOVAL [03/2017 - 05/2023] 

    Result: 

    DTC B1638/82 is not output 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [03/2017 - 04/2020] 

  20. CHECK FLOOR WIRE 
    1. Disconnect the floor wire connector from the front door wire LH.
      GTY825660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *1 Door Side Airbag Sensor LH
      *2 Rear Airbag Sensor LH
      *3 Front Door Wire LH
      *4 Floor Wire
      *5 Service Wire
      *a Front view of wire harness connector
      (to Front Door Wire LH)
      *b Front view of wire harness connector
      (to Rear Airbag Sensor LH)
    2. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    3. Turn the engine switch on (IG).
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      SX1-30 (BBL+) - Body ground Engine switch on (IG) Below 1 V
      SX1-48 (BBL-) - Body ground Engine switch on (IG) Below 1 V
    5. Turn the engine switch off.
    6. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    7. Using a service wire, connect terminals 1 (BBL+) and 2 (BBL-) of connector B.
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      SX1-30 (BBL+) - SX1-48 (BBL-) 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
      SX1-30 (BBL+) - SX1-48 (BBL-) Always 1 MΩ or higher
      SX1-30 (BBL+) - Body ground Always 1 MΩ or higher
      SX1-48 (BBL-) - Body ground Always 1 MΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FRONT DOOR WIRE LH 

    Result: 

    NG 

    REPLACE FLOOR WIRE 

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