LEMON Manuals: Even more car manuals for everyone
Home >> Toyota >> 2010 >> Matrix S, FWD, Automatic >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Supplemental Restraint System (Diagnostic Codes (B1000/31 - B1905/74) & Circuit 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

  1. CHECK PASSENGER AIRBAG ON/OFF INDICATOR CONDITION 
    1. Turn the ignition switch to ON.
    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: View Of Passenger Airbag ON/OFF Indicator Timing Chart
      GTY201400Courtesy 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 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 connector is properly connected to the center airbag sensor assembly.

      OK

      The connector is properly connected.

      HINT: 

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

    4. Disconnect the connector from the center airbag sensor 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: Go to next step 

  3. CHECK PASSENGER AIRBAG ON/OFF INDICATOR 
    1. Connect the cable to the negative (-) battery terminal.
    2. Turn the ignition switch to ON.
    3. 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. Turn the ignition switch off.
      Fig 2: Identifying Center Airbag Sensor Assembly Connector Terminals
      GTY201380Courtesy 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 to ON, 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 to ON, 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   16 

    OK → See step   17 

  5. CHECK 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 connector is properly connected to the telltale light assembly.

      OK

      The connector is properly connected.

      HINT: 

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

    4. Disconnect the connector from the telltale light 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: Go to next step 

  6. CHECK INSTRUMENT PANEL WIRE (OPEN) 
    1. Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
      Fig 3: Identifying Instrument Panel Wire (Open) Connector Terminals
      GTY228464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      E60-7 (PAON) - E60-6 (P-AB) Always Below 1 Ω

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  7. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) 
    1. Disconnect SST from connector B.
      Fig 4: Identifying Instrument Panel Wire (Short To B+) And E60 Connector Terminals
      GTY214534Courtesy 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
      E60-7 (PAON) - Body ground Always 1 MΩ or higher
      E60-6 (P-AB) - Body ground Always 1 MΩ or higher

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  8. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      Fig 5: Identifying Instrument Panel Wire (Short To B+) And E60 Connector Terminals
      GTY214534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E60-7 (PAON) - Body ground Ignition switch ON Below 1 V
      E60-6 (P-AB) - Body ground Ignition switch ON Below 1 V

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK → See step   18 

  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. Check that the connectors are properly connected to the center airbag sensor assembly and the telltale light assembly.

      OK

      The connectors are properly connected.

      HINT: 

      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 telltale light 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: Go to next step 

  10. CHECK INSTRUMENT PANEL WIRE (OPEN) 
    1. Using SST, connect terminals 23 (PAON) and 17 (P-AB) of connector B.
      Fig 6: Identifying Instrument Panel Wire (Open) And E18 And E16 Connector Terminals
      GTY228464Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      NOTE:

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

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      E60-7 (PAON) - E60-6 (P-AB) Always Below 1 Ω

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  11. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND) 
    1. Disconnect SST from connector B.
      Fig 7: Identifying Instrument Panel Wire (Short To B+) And E60 Connector Terminals
      GTY214534Courtesy 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
      E60-7 (PAON) - Body ground Always 1 MΩ or higher
      E60-6 (P-AB) - Body ground Always 1 MΩ or higher

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  12. CHECK INSTRUMENT PANEL WIRE (SHORT TO B+) 
    1. Connect the cable to the negative (-) battery terminal.
      Fig 8: Identifying Instrument Panel Wire (Short To B+) And E60 Connector Terminals
      GTY214534Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to ON.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E60-7 (PAON) - Body ground Ignition switch ON Below 1 V
      E60-6 (P-AB) - Body ground Ignition switch ON Below 1 V

    NG → REPLACE INSTRUMENT PANEL WIRE 

    OK: Go to next step 

  13. CHECK TELLTALE LIGHT ASSEMBLY (SOURCE VOLTAGE) 
    1. Turn the ignition switch off.
      Fig 9: View Of Telltale Light Assembly (Source Voltage) Connector Terminals
      GTY244478Courtesy 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 to ON.
    6. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      E60-4 (B) - Body ground Ignition switch ON 10 to 16 V

    NG → REPLACE WIRE HARNESS OR BATTERY 

    OK: Go to next step 

  14. CHECK PASSENGER AIRBAG ON/OFF INDICATOR 
    1. Turn the ignition switch off.
      Fig 10: Identifying E18 Connector Terminals
      GTY243805Courtesy 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 telltale light assembly.
    4. Disconnect the connector from the center airbag sensor assembly.
    5. Connect the cable to the negative (-) battery terminal.
    6. Turn the ignition switch to ON.
    7. Check the indicator according to the conditions in the table below.

      Indicator Condition

      Tester Connection Switch Condition Passenger Airbag ON/OFF Indicator
      E18-23 (PAON) - Body ground Ignition switch ON "ON" comes on
      E18-17 (P-AB) - Body ground Ignition switch ON "OFF" comes on

    NG → See step   18 

    OK: Go to next step 

  15. CHECK CENTER AIRBAG SENSOR ASSEMBLY 
    1. Turn the ignition switch off.
      Fig 11: Identifying DLC3 Connector Terminals
      GTY201380Courtesy 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 to ON, 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 to ON, 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   16 

    OK → See step   17 

  16. REPLACE CENTER AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL 
  17. USE SIMULATION METHOD TO CHECK. Refer to  DIAGNOSIS SYSTEM 
  18. REPLACE TELLTALE LIGHT ASSEMBLY. Refer to  REMOVAL 
scientia non olet · About LEMON Manuals