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 clock assembly.

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 stored 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 detects a line short to ground or B+, or an open 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)

  • Center airbag sensor assembly

WIRING DIAGRAM

A015YL7E10

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
      Result Proceed to
      ON/OFF Indicator illumination is always "ON". A
      ON/OFF Indicator illumination is always "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 center airbag sensor assembly.

      OK
      The connector is properly connected.

      Tech Tips

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

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

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

      OK
      The terminals are not deformed or damaged.

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR


    1. Connect the connector to the clock assembly.

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

    3. Turn the engine switch on (IG).

    4. 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.

      OK
      The connector is properly connected.

      Tech Tips

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

    4. Disconnect the connector from the clock assembly.

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

      OK
      The terminal is not deformed or damaged.

    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.

      A016394E01

      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
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - J105-13 (P-AB) Always Below 1 Ω

    3. Disconnect SST from connector B.


    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  7. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


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

      A015ZYEE01
      Standard Resistance
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - Body ground Always 1 MΩ or higher
      J105-13 (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.

      A015ZYEE01

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J105-13 (P-AB) - Body ground Engine switch on (IG) Below 1 V

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

    REPLACE CLOCK ASSEMBLY Click here

  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 clock assembly.

      OK
      The connectors are properly connected.

      Tech Tips

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

    4. Disconnect the connectors from the center airbag sensor assembly and clock assembly.

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

      OK
      The terminals are not deformed or damaged.

    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.

      A016394E01

      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
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - J105-13 (P-AB) Always Below 1 Ω

    3. Disconnect SST from connector B.


    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  11. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


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

      A015ZYEE01
      Standard Resistance
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - Body ground Always 1 MΩ or higher
      J105-13 (P-AB) - Body ground Always 1 MΩ or higher

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

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


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

      A015ZYEE01

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      J105-4 (PAON) - Body ground Engine switch on (IG) Below 1 V
      J105-13 (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. A0163AIE01

      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
      Tester Connection Condition Specified Condition
      J105-15 (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.

    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.

      OK
      Terminal Connection Condition Specified Condition
      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

    NG

    REPLACE CLOCK ASSEMBLY Click here

    OK

  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