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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 221 (Supplemental Restraint System) >> Airbag System >> DTC B1660/43 Passenger Airbag ON/OFF Indicator Circuit Malfunction >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR OPERATION 
    1. Turn the ignition switch ON.
    2. Check the passenger airbag ON / OFF indicator operation.

      Result 

      RESULT

      ON / OFF Indicator Illumination Proceed to
      Always ON A
      OFF B
    3. Fig 1: Identifying Timing Chart (Passenger Airbag On/Off Indicator)
      G05585652Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B: Go to step  8

    A: Go to next step 

  2. CHECK CONNECTION OF CONNECTOR 
    1. Turn the ignition 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 and the front passenger seat belt warning light.

      OK: 

      The connectors are properly connected. 

    NG: CONNECT CONNECTOR 

    OK: Go to next step 

  3. CHECK FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the connector from the center airbag sensor.
    4. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    5. Turn the ignition switch ON.
    6. Check the passenger airbag ON / OFF indicator operation.
      Fig 2: Identifying Front Passenger Airbag ON/OFF Indicator
      G05585653Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: 

    Neither ON nor OFF passenger airbag ON / OFF indicator comes on. 

    OK: Go to step   14

    NG: Go to next step 

  4. CHECK INSTRUMENT PANEL WIRE (FOR OPEN) 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the connector from the front passenger airbag ON / OFF indicator light.
    4. Using a service wire, connect E45-23 (PAON) and E45-17 (P-AB) of connector B.
      NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
    5. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E23-6 (PAON) - E23-13 (P-AB)*1 Below 1 Ω
      E22-4 (PAON) - E22-9 (P-AB)*2 Below 1 Ω
      HINT:
      *1: for Automatic Air Conditioning System
      *2: for Manual Air Conditioning System
    Fig 3: Identifying Instrument Panel Wire (For Open)
    G05585654Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  5. CHECK INSTRUMENT PANEL WIRE (FOR SHORT) 
    1. Disconnect the service wire from connector B.
    2. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-17 (P-AB) - E45-23 (PAON) 1 MΩ or higher
      Fig 4: Identifying Instrument Panel Wire (For Short)
      G05585655Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  6. CHECK INSTRUMENT PANEL WIRE (TO B+) 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch ON.
    3. Measure the voltage of the wire harness side connectors.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-23 (PAON) - Body ground Below 1 V
      E45-17 (P-AB) - Body ground Below 1 V
      Fig 5: Identifying Instrument Panel Wire (To B+)
      G05585656Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  7. CHECK INSTRUMENT PANEL WIRE (TO GROUND) 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-17 (P-AB) -Body ground 1 MΩ or higher
      E45-23 (PAON) -Body ground 1 MΩ or higher
      Fig 6: Identifying Instrument Panel Wire (To Ground)
      G05585657Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: REPLACE FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT 

  8. CHECK CONNECTION OF CONNECTOR 
    1. Turn the ignition 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 and the heater control panel*1 or clock*2.

      OK: 

      The connectors are properly connected. 

      HINT:

      *1: for Automatic Air Conditioning System

      *2: for Manual Air Conditioning System

    NG: CONNECT CONNECTOR 

    OK: Go to next step 

  9. CHECK INSTRUMENT PANEL WIRE (FOR OPEN) 
    1. Disconnect the connector from the front passenger airbag ON / OFF indicator light
    2. Using a service wire, connect E45-23 (PAON) and E45-17 (P-AB) of connector B.
      NOTE: Do not forcibly insert the service wire into the terminals of the connector when connecting.
    3. Measure the resistance of the wire harness side connectors.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E23-6 (PAON) - E23-13 (P-AB)*1 Below 1 Ω
      E22-4 (PAON) - E22-9 (P-AB)*2 Below 1 Ω
      HINT:
      *1: for Automatic Air Conditioning System
      *2: for Manual Air Conditioning System
      Fig 7: Identifying Instrument Panel Wire (For Open)
      G05585658Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  10. CHECK INSTRUMENT PANEL WIRE (FOR SHORT) 
    1. Disconnect the service wire from connector B.
    2. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-17 (P-AB) - E45-23 (PAON) 1 MΩ or higher
      Fig 8: Identifying Instrument Panel Wire (To Ground)
      G05585659Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  11. CHECK INSTRUMENT PANEL WIRE (TO B+) 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch ON.
    3. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-23 (PAON) - Body ground Below 1 V
      E45-17 (P-AB) - Body ground Below 1 V
      Fig 9: Identifying Instrument Panel Wire (To B+)
      G05585660Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  12. CHECK INSTRUMENT PANEL WIRE (TO GROUND) 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Measure the resistance of the wire harness side connector.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E45-17 (P-AB) - Body ground 1 MΩ or higher
      E45-23 (PAON) - Body ground 1 MΩ or higher
      Fig 10: Identifying Instrument Panel Wire (To Ground)
      G05585661Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  13. CHECK WIRE HARNESS (POWER SOURCE) 
    1. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    2. Turn the ignition switch ON.
    3. Measure the voltage of the wire harness side connector.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION

      Tester Connection Specified Condition
      E23-2 (IG+) - Body ground*1 10 to 14 V
      E22-2 (IG+) - Body ground*2 10 to 14 V
      HINT:
      *1: for Automatic Air Conditioning System
      *2: for Manual Air Conditioning System
      Fig 11: Identifying Wire Harness (Power Source)
      G05585662Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE POWER SOURCE CIRCUIT 

    OK: Go to next step 

  14. CHECK FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT 
    1. Turn the ignition switch OFF.
    2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
    3. Disconnect the connector from the heater control panel*1 or clock*2.
    4. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    5. Using a service wire, connect E23-6*1 E22-4*2 (PAON) and E23-7*1 (GND) E22-5*2 (E) of the heater control panel *1 or clock*2.

      HINT:

      *1: for Automatic Air Conditioning System

      *2: for Manual Air Conditioning System

    6. Using a service wire, connect E23-13*1 E22-9*2 (P-AB) and E23-7 *1 (GND) E22-5*2 (E) of the heater control panel *1 or clock*2.

      HINT:

      *1: for Automatic Air Conditioning System

      *2: for Manual Air Conditioning System

    7. Turn the ignition switch ON.
    8. Check the passenger airbag ON / OFF indicator operation.
      Fig 12: Identifying Front Passenger Airbag On/Off Indicator Light
      G05585663Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Front passenger airbag ON / OFF indicator comes on 

    NG: REPLACE FRONT PASSENGER AIRBAG ON/OFF INDICATOR LIGHT 

    OK: Go to next step 

  15. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Turn the ignition 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.
      Fig 13: Identifying Center Airbag Sensor Assembly
      G05585664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the connector to the heater control panel*1 or clock*2.

      HINT:

      *1: for Automatic Air Conditioning System

      *2: for Manual Air Conditioning System

    5. Connect the cable to the negative (-) battery terminal, and wait for at least 2 seconds.
    6. Turn the ignition switch ON, and wait for at least 60 seconds.
    7. Clear the DTCs (see DTC CHECK / CLEAR  ).
    8. Turn the ignition switch OFF.
    9. Turn the ignition switch ON, and wait for at least 60 seconds.
    10. Check for DTCs (see DTC CHECK / CLEAR  ).

      OK: 

      DTC B1660/43 is not output. 

      HINT:

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

    NG: REPLACE CENTER AIRBAG SENSOR ASSEMBLY 

    OK: USE SIMULATION METHOD TO CHECK