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Home >> Toyota >> 2011 >> Highlander Hybrid Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 109 (Supplemental Restraint System (Diagnostic Codes & Symptom Tests)) >> Airbag System >> DTC B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction >> Procedure

DTC B1660/43: Passenger Airbag ON/OFF Indicator Circuit Malfunction: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION 
    1. Turn the ignition switch on (IG).
    2. Check the passenger airbag ON/OFF indicator operation.

      HINT: 

      Refer to the normal condition of the passenger airbag ON/OFF indicator, refer to DIAGNOSIS SYSTEM .

      Fig 1: Identifying On/Off Indicator Switch Blinking Pattern
      GTY201399Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Result

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

    B → See step   9 

    A: Go to next step 

  2. CHECK CONNECTORS 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. w/ Navigation system:
      1. Check that the connectors are properly connected to the center airbag sensor assembly and navigation receiver assembly. Also check that the connectors that link the No. 2 instrument panel wire and instrument panel wire are properly connected.

        OK

        The connectors are properly connected.

        HINT: 

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

      2. Disconnect the connectors from the center airbag sensor assembly and navigation receiver assembly. Also disconnect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      3. Check that the terminals of the connectors are not damaged.

        OK

        The terminals are not deformed or damaged.

    4. w/o Navigation system:
      1. Check that the connectors are properly connected to the center airbag sensor assembly and integration control and panel assembly. Also check that the connectors that link the No. 2 instrument panel wire and instrument panel wire are properly connected.

        OK

        The connectors are properly connected.

        HINT: 

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

      2. Disconnect the connectors from the center airbag sensor assembly and integration control and panel assembly. Also disconnect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      3. Check that the terminals of the connectors are not damaged.

        OK

        The terminals are not deformed or damaged.

    NG → REPLACE WIRE HARNESS 

    OK: Go to next step 

  3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR 
    1. Connect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      Fig 2: Identifying Passenger Airbag ON/OFF Indicator
      GTY204139Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. w/ Navigation system:

      Connect the connector to the navigation receiver assembly.

    3. w/o Navigation system:

      Connect the connector to the integration control and panel assembly.

    4. Connect the cable to the negative (-) battery terminal.
    5. Turn the ignition switch on (IG).
    6. Check the passenger airbag ON/OFF indicator operation.

      OK

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

    NG → See step   5 

    OK: Go to next step 

  4. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Connect the connector to the center airbag sensor assembly.
      Fig 3: Identifying Center Airbag Sensor Assembly
      GTY304828Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Connect the cable to the negative (-) battery terminal.
    3. Turn the ignition switch on (IG), 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 on (IG), and wait for at least 60 seconds.
    7. Check for DTCs, refer to DTC CHECK / CLEAR .

      OK

      DTC B1660/43 is not output.

      HINT: 

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

    NG → See step   17 

    OK → See step   18 

  5. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN) 
    1. Turn the ignition switch off.
      Fig 4: Identifying Passenger Airbag ON/OFF Indicator Circuit (Open)
      GTY296859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. w/ Navigation system:

      Disconnect the connector from the navigation receiver assembly.

    4. w/o Navigation system:

      Disconnect the connector from the integration control and panel assembly.

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

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

      • SST: 09843-18040 
    6. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - E19-9 (P-AB) Always Below 1 Ω

    NG → See step   21 

    OK: Go to next step 

  6. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT) 
    1. Disconnect SST from connector B.
      Fig 5: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - E19-9 (P-AB) Always 1 MΩ or higher

    NG → See step   22 

    OK: Go to next step 

  7. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 6: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - Body ground Always 1 MΩ or higher
      E19-9 (P-AB) - Body ground Always 1 MΩ or higher

    NG → See step   23 

    OK: Go to next step 

  8. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      Fig 7: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E19-8 (PAON) - Body ground Ignition switch on (IG) Below 1 V
      E19-9 (P-AB) - Body ground Ignition switch on (IG) Below 1 V

      Result

      Result Proceed to
      OK (w/ Navigation system) A
      OK (w/o Navigation system) B
      NG C

    B → See step   20 

    C → See step   24 

    A → See step   19 

  9. CHECK CONNECTORS 
    1. Turn the ignition switch off.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. w/ Navigation system:
      1. Check that the connectors are properly connected to the center airbag sensor assembly and navigation receiver assembly. Also check that the connectors that link the No. 2 instrument panel wire and instrument panel wire are properly connected.

        OK

        The connectors are properly connected.

        HINT: 

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

      2. Disconnect the connectors from the center airbag sensor assembly and navigation receiver assembly. Also disconnect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      3. Check that the terminals of the connectors are not damaged.

        OK

        The terminals are not deformed or damaged.

    4. w/o Navigation system:
      1. Check that the connectors are properly connected to the center airbag sensor assembly and integration control and panel assembly. Also check that the connectors that link the No. 2 instrument panel wire and instrument panel wire are properly connected.

        OK

        The connectors are properly connected.

        HINT: 

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

      2. Disconnect the connectors from the center airbag sensor assembly and integration control and panel assembly. Also disconnect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      3. Check that the terminals of the connectors are not damaged.

        OK

        The terminals are not deformed or damaged.

    NG → REPLACE WIRE HARNESS 

    OK: Go to next step 

  10. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (OPEN) 
    1. Connect the connectors that link the No. 2 instrument panel wire and instrument panel wire.
      Fig 8: Identifying Passenger Airbag ON/OFF Indicator Circuit (Open)
      GTY296859Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
      NOTE:

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

      • SST: 09843-18040 
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - E19-9 (P-AB) Always Below 1 Ω

    NG → See step   21 

    OK: Go to next step 

  11. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT) 
    1. Disconnect SST from connector B.
      Fig 9: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - E19-9 (P-AB) Always 1 MΩ or higher

    NG → See step   22 

    OK: Go to next step 

  12. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 10: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      E19-8 (PAON) - Body ground Always 1 MΩ or higher
      E19-9 (P-AB) - Body ground Always 1 MΩ or higher

    NG → See step   23 

    OK: Go to next step 

  13. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CIRCUIT (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      Fig 11: Identifying Passenger Airbag ON/OFF Indicator Circuit (Short To B+)
      GTY204506Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E19-8 (PAON) - Body ground Ignition switch on (IG) Below 1 V
      E19-9 (P-AB) - Body ground Ignition switch on (IG) Below 1 V

    NG → See step   24 

    OK: Go to next step 

  14. CHECK PASSENGER AIRBAG ON/OFF INDICATOR (SOURCE VOLTAGE) 
    1. Turn the ignition switch on (IG).
      Fig 12: Identifying Passenger Airbag ON/OFF Indicator Connector Terminals
      GTY204435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E19-1 (B) - Body ground Ignition switch on (IG) 10 to 14 V

    NG → REPLACE WIRE HARNESS (PASSENGER AIRBAG ON/OFF INDICATOR - BATTERY) OR BATTERY 

    OK: Go to next step 

  15. CHECK PASSENGER AIRBAG ON/OFF INDICATOR 
    1. Turn the ignition switch off.
      Fig 13: Identifying Passenger Airbag ON/OFF Indicator Connector Terminals
      GTY204436Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. w/ Navigation system

      Connect the connector to the navigation receiver assembly.

    4. w/o Navigation system

      Connect the connector to the integration control and panel assembly.

    5. Connect the cable to the negative (-) battery terminal.
    6. Turn the ignition 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
      D30-23 (PAON) - Body ground Ignition switch on (IG) "ON" comes on
      D30-17 (P-AB) - Body ground Ignition switch on (IG) "OFF" comes on

      Result

      Result Proceed to
      OK A
      NG (w/ Navigation system) B
      NG (w/o Navigation system) C

    B → See step   19 

    C → See step   20 

    A: Go to next step 

  16. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Turn the ignition switch off.
      Fig 14: Identifying Center Airbag Sensor Assembly
      GTY304828Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 ignition switch on (IG), and wait for at least 60 seconds.
    6. Clear the DTCs stored in the memory, refer to DTC CHECK / CLEAR .
    7. Turn the ignition switch off.
    8. Turn the ignition switch on (IG), and wait for at least 60 seconds.
    9. Check for DTCs, refer to DTC CHECK / CLEAR .

      OK

      DTC B1660/43 is not output.

      HINT: 

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

    NG → See step   17 

    OK → See step   18 

  17. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  18. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  19. REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL 
  20. REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY. Refer to  REMOVAL 
  21. CHECK INSTRUMENT PANEL WIRE (OPEN) 
    1. Disconnect the instrument panel wire from the No. 2 instrument panel wire.
      Fig 15: Identifying Instrument Panel Wire (Open)
      GTY302224Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      SST has already been inserted into connector B.

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      ED5-4 (PAON) - ED5-3 (P-AB) Always Below 1 Ω

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK → REPLACE NO. 2 INSTRUMENT PANEL WIRE 

  22. CHECK INSTRUMENT PANEL WIRE (SHORT) 
    1. Disconnect the instrument panel wire from the No. 2 instrument panel wire.
      Fig 16: Identifying Instrument Panel Wire (Short)
      GTY305010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      ED5-4 (PAON) - ED5-3 (P-AB) Always 1 MΩ or higher

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK → REPLACE NO. 2 INSTRUMENT PANEL WIRE 

  23. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) 
    1. Disconnect the instrument panel wire from the No. 2 instrument panel wire.
      Fig 17: Identifying Instrument Panel Wire (Short)
      GTY305010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      ED5-4 (PAON) - Body ground Always 1 MΩ or higher
      ED5-3 (P-AB) - Body ground Always 1 MΩ or higher

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK → REPLACE NO. 2 INSTRUMENT PANEL WIRE 

  24. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) 
    1. Turn the ignition switch off.
      Fig 18: Identifying Instrument Panel Wire (Short)
      GTY305010Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the instrument panel wire from the No. 2 instrument panel wire.
    4. Connect the cable to the negative (-) battery terminal.
    5. Turn the ignition switch on (IG).
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      ED5-4 (PAON) - Body ground Ignition switch on (IG) Below 1 V
      ED5-3 (P-AB) - Body ground Ignition switch on (IG) Below 1 V

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK → REPLACE NO. 2 INSTRUMENT PANEL WIRE 

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