AIRBAG SYSTEM, Diagnostic DTC:B1660/43

DTC Code DTC Name
B1660/43 Passenger Airbag ON/OFF Indicator Circuit Malfunction

DESCRIPTION

The passenger airbag ON/OFF indicator circuit consists of the center airbag sensor assembly and the clock assembly*1 or integration control and panel assembly*2.

The passenger airbag ON/OFF indicator indicates the operation condition of the front passenger airbag, front passenger side knee airbag and front passenger side - side airbag.

DTC B1660/43 is recorded when a malfunction is detected in the passenger airbag ON/OFF indicator circuit.

DTC No. DTC Detecting Condition Trouble Area
B1660/43

  • The center airbag sensor assembly receives an open circuit signal, a short circuit to ground signal or a short circuit to B+ signal in the passenger airbag ON/OFF indicator circuit for 2 seconds.

  • Passenger airbag ON/OFF indicator malfunction

  • Center airbag sensor assembly malfunction

  • Instrument panel wire

  • Clock assembly (Passenger airbag ON/OFF indicator)*1

  • Integration control and panel assembly (Passenger airbag ON/OFF indicator)*2

  • Center airbag sensor assembly

Tech Tips


  • *1: w/ Navigation System


  • *2: w/o Navigation System

WIRING DIAGRAM

A016000E03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION


    1. Turn the engine switch on (IG).

    2. Check the passenger airbag ON/OFF indicator operation.

      Tech Tips

      Refer to the normal condition of the passenger airbag ON/OFF indicator Click here.

      A0160VTE56
      Result
      ON/OFF Indicator Illumination Proceed to
      Always ON A
      OFF B

    B

    CHECK CONNECTORS Click here

    A

  2. CHECK CONNECTOR


    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 connector is properly connected to the clock assembly*1 or integration control and panel assembly*2.

      OK
      The connector is properly connected.

      Tech Tips

      If the connector is not connected securely, reconnect the connector and proceed to the next inspection.

    4. Disconnect the connector from the clock assembly*1 or integration control and panel assembly*2.

    5. Check that the terminal of the connector is not damaged.

      OK
      The terminal is not deformed or damaged.

      Tech Tips


      • *1: w/ Navigation System


      • *2: w/o Navigation System


    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR


    1. Connect the cable to the negative (-) battery terminal.

    2. Turn the engine switch on (IG).

    3. Check the passenger airbag ON/OFF indicator operation.

      OK
      The passenger airbag ON/OFF indicator does not come on.

    NG

    CHECK CONNECTOR Click here

    OK

  4. CHECK CENTER AIRBAG SENSOR ASSEMBLY


    1. A01606QE03

      Turn the engine switch off.

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

    3. Connect the connector to the center airbag sensor assembly.

    4. Connect the cable to the negative (-) battery terminal.

    5. Turn the engine switch on (IG), and wait for at least 60 seconds.

    6. Clear the DTCs stored in the memory Click here.

    7. Turn the engine switch off.

    8. Turn the engine switch on (IG), and wait for at least 60 seconds.

    9. Check for DTCs Click here.

      OK
      DTC B1660/43 is not output.

      Tech Tips

      Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.


    NG

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here

  5. CHECK CONNECTOR


    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 connector is properly connected to the clock assembly*1 or integration control and panel assembly*2.

      OK
      The connector is properly connected.

      Tech Tips

      If the connector is not connected securely, reconnect the connector and proceed to the next inspection.

    4. Disconnect the connector from the clock assembly*1 or integration control and panel assembly*2.

    5. Check that the terminal of the connector is not damaged.

      OK
      The terminal is not deformed or damaged.

      Tech Tips


      • *1: w/ Navigation System


      • *2: w/o Navigation System


    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  6. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.

      A0161FCE03

      Note

      Do not forcibly insert SST into the terminals of the connector when connecting.

      SST
      09843-18040

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

      Standard Resistance
      w/ Navigation System
      Tester Connection Condition Specified Condition
      J53-3 (PAON) - J53-9 (P-AB) Always Below 1 Ω
      w/o Navigation System
      Tester Connection Condition Specified Condition
      J54-6 (PAON) - J54-7 (P-AB) Always Below 1 Ω

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  7. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. Disconnect SST from connector B.

      A01618QE01

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

      Standard Resistance
      w/ Navigation System
      Tester Connection Condition Specified Condition
      J53-3 (PAON) - Body ground Always 1 MΩ or higher
      J53-9 (P-AB) - Body ground Always 1 MΩ or higher
      w/o Navigation System
      Tester Connection Condition Specified Condition
      J54-6 (PAON) - Body ground Always 1 MΩ or higher
      J54-7 (P-AB) - Body ground Always 1 MΩ or higher

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  8. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)


    1. Connect the cable to the negative (-) battery terminal.

      A01618QE01

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      w/ Navigation System
      Tester Connection Switch Condition Specified Condition
      J53-3 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J53-9 (P-AB) - Body ground Engine switch on (IG) Below 1 V
      w/o Navigation System
      Tester Connection Switch Condition Specified Condition
      J54-6 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J54-7 (P-AB) - Body ground Engine switch on (IG) Below 1 V
      Result
      Result Proceed to
      NG A
      OK (w/ Navigation System) B
      OK (w/o Navigation System) C

    B

    REPLACE CLOCK ASSEMBLY Click here

    C

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY Click here

    A

    REPLACE INSTRUMENT PANEL WIRE

  9. CHECK 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 center airbag sensor assembly and the clock assembly*1 or integration control and panel assembly*2.

      OK
      The connectors are properly connected.

      Tech Tips

      If the connectors are not connected securely, reconnect the connectors and proceed to the next inspection.

    4. Disconnect the connectors from the center airbag sensor assembly and the clock assembly*1 or integration control and panel assembly*2.

    5. Check that the terminals of the connectors are not damaged.

      OK
      The terminals are not deformed or damaged.

      Tech Tips


      • *1: w/ Navigation System


      • *2: w/o Navigation System


    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  10. CHECK INSTRUMENT PANEL WIRE (OPEN)


    1. Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.

      A0161FCE03

      Note

      Do not forcibly insert SST into the terminals of the connector when connecting.

      SST
      09843-18040

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

      Standard Resistance
      w/ Navigation System
      Tester Connection Condition Specified Condition
      J53-3 (PAON) - J53-9 (P-AB) Always Below 1 Ω
      w/o Navigation System
      Tester Connection Condition Specified Condition
      J54-6 (PAON) - J54-7 (P-AB) Always Below 1 Ω

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  11. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. Disconnect SST from connector B.

      A01618QE01

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

      Standard Resistance
      w/ Navigation System
      Tester Connection Condition Specified Condition
      J53-3 (PAON) - Body ground Always 1 MΩ or higher
      J53-9 (P-AB) - Body ground Always 1 MΩ or higher
      w/o Navigation System
      Tester Connection Condition Specified Condition
      J54-6 (PAON) - Body ground Always Below 1 Ω
      J54-7 (P-AB) - Body ground Always Below 1 Ω

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  12. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+)


    1. Connect the cable to the negative (-) battery terminal.

      A01618QE01

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      w/ Navigation System
      Tester Connection Switch Condition Specified Condition
      J53-3 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J53-9 (P-AB) - Body ground Engine switch on (IG) Below 1 V
      w/o Navigation System
      Tester Connection Switch Condition Specified Condition
      J54-6 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J54-7 (P-AB) - Body ground Engine switch on (IG) Below 1 V

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  13. CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE)


    1. A015ZREE01

      Connect the connector to the center airbag sensor assembly.

    2. Connect the cable to the negative (-) battery terminal.

    3. Turn the engine switch on (IG).

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

      Standard Voltage
      w/ Navigation System
      Tester Connection Switch Condition Specified Condition
      J53-11 (IG+) - Body ground Engine switch on (IG) 8 to 16 V
      w/o Navigation System
      Tester Connection Switch Condition Specified Condition
      J54-4 (IG+) - Body ground Engine switch on (IG) 8 to 16 V

    NG

    REPLACE WIRE HARNESS OR BATTERY

    OK

  14. CHECK PASSENGER AIRBAG ON/OFF INDICATOR


    1. A0162AOE04

      Turn the engine switch off.

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

    3. Connect the connector to the clock assembly*1 or integration control and panel assembly*2.

      Tech Tips


      • *1: w/ Navigation System

      • *2: w/o Navigation System

    4. Disconnect the connector from the center airbag sensor assembly.

    5. Connect the cable to the negative (-) battery terminal.

    6. Turn the engine switch on (IG).

    7. Check the indicator according to the conditions in the table below.

      Indicator Condition
      Tester Connection Switch Condition Passenger Airbag ON/OFF Indicator
      J47-23 (PAON) - Body ground Engine switch on (IG) "ON" comes on
      J47-17 (P-AB) - Body ground Engine switch on (IG) "OFF" comes on
      Result
      Result Proceed to
      OK A
      NG (w/ Navigation System) B
      NG (w/o Navigation System) C

    B

    REPLACE CLOCK ASSEMBLY Click here

    C

    REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY Click here

    A

  15. CHECK CENTER AIRBAG SENSOR ASSEMBLY


    1. A01606QE03

      Turn the engine switch off.

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

    3. Connect the connector to the center airbag sensor assembly.

    4. Connect the cable to the negative (-) battery terminal.

    5. Turn the engine switch on (IG), and wait for at least 60 seconds.

    6. Clear the DTCs stored in the memory Click here.

    7. Turn the engine switch off.

    8. Turn the engine switch on (IG), and wait for at least 60 seconds.

    9. Check for DTCs Click here.

      OK
      DTC B1660/43 is not output.

      Tech Tips

      Codes other than DTC B1660/43 may be output at this time, but they are not related to this check.


    NG

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here

    OK

    USE SIMULATION METHOD TO CHECK Click here