AIRBAG SYSTEM Trouble in Passenger Airbag ON/OFF Indicator

DESCRIPTION

When the airbag cut-off switch is turned off, the passenger airbag OFF indicator illuminates. When the passenger airbag OFF indicator illuminates, both the front passenger airbag assembly and SRS seat cushion airbag assembly stop functioning.

Tech Tips

Approximately 6 seconds after the ignition switch is turned to ON, the passenger airbag ON/OFF indicator will be ON/OFF depending on the conditions listed below.

Airbag Cut-off Switch Passenger Airbag ON/OFF Indicator SRS Warning Light
ON Indicator OFF Indicator
ON ON OFF OFF
OFF OFF ON OFF
Switch failure OFF ON ON

WIRING DIAGRAM

A011B51E08

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK SRS WARNING LIGHT


    1. Turn the ignition switch to ON, and check the SRS warning light condition.

      OK
      The SRS warning light does not come on.

    NG

    GO TO DTC CHART Click here

    OK

  2. CHECK CONNECTION OF CONNECTORS


    1. Turn the ignition switch off.

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

    3. Check that the connectors are properly connected to the center airbag sensor assembly and the airbag cut-off switch.

      OK
      The connectors are properly connected.

    NG

    CONNECT CONNECTORS PROPERLY

    OK

  3. CHECK CONNECTORS


    1. Disconnect the connectors from the center airbag sensor assembly and airbag cut-off switch.

    2. Check that the connectors (on the center airbag sensor assembly side and airbag cut-off switch side) are not damaged.

      OK
      The connectors are not deformed or damaged.

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  4. CHECK AIRBAG CUT-OFF SWITCH


    1. A0118PGE02
      Text in Illustration
      *1

      Component without harness connected

      (Airbag Cut-off Switch)

      Disconnect the connector from the airbag cut-off switch.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      D48-1 (PMC-) - D48-2 (PMC+) OFF 80 to 120 Ω
      D48-1 (PMC-) - D48-2 (PMC+) ON 320 to 480 Ω

    NG

    REPLACE AIRBAG CUT-OFF SWITCH Click here

    OK

  5. CHECK INSTRUMENT PANEL WIRE (CENTER AIRBAG SENSOR - AIRBAG CUT-OFF SWITCH)

    A0118F6E01
    Text in Illustration
    *1

    Rear view of wire harness connector

    (to Airbag Cut-off Switch)

    		 *5 Instrument Panel Wire
    *2

    Rear view of wire harness connector

    (to Center Airbag Sensor Assembly)

    		 *6 Connector C
    *3 Airbag Cut-off Switch *7 Connector B
    *4 Center Airbag Sensor Assembly *8 Service Wire

    1. Disconnect the instrument panel wire connector from the airbag cut-off switch.

    2. Connect the cable to the negative battery terminal, and wait for at least 2 seconds.

    3. Turn the ignition switch to ON.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D43-11 (MSW+) - Body ground Ignition switch ON Below 1 V
      D43-12 (MSW-) - Body ground Ignition switch ON Below 1 V

    5. Turn the ignition switch off.

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

    7. Using a service wire, connect terminals 2 (PMC+) and 1 (PMC-) of connector C.

      Note

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

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D43-11 (MSW+) - D43-12 (MSW-) Always Below 1 Ω

    9. Disconnect the service wire from connector C.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      D43-11 (MSW+) - D43-12 (MSW-) Always 1 MΩ or higher
      D43-11 (MSW+) - Body ground Always 1 MΩ or higher
      D43-12 (MSW-) - Body ground Always 1 MΩ or higher

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here