AIRBAG SYSTEM Trouble in Passenger Airbag ON/OFF Indicator

DESCRIPTION

This circuit detects the airbag cut off switch status.

The passenger airbag ON/OFF indicator comes on to inform the front passenger airbag, front passenger side knee airbag and front passenger side - side airbag status (activated or deactivated).

Tech Tips

Approximately 6 seconds after the engine switch is turned to on (IG), 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 position ON OFF OFF
OFF position OFF ON OFF
Switch failure OFF ON ON

WIRING DIAGRAM

A0161D2E07

INSPECTION PROCEDURE

Tech Tips

The "B" J47-11 (MSW+) and J47-12 (MSW-) connectors in this circuit have an activation prevention mechanism.

This mechanism can be used to check for an open circuit in the wire harness. In case of other checks (check for short, short to ground or short to B+), this mechanism should be released.

PROCEDURE


  1. CHECK SRS WARNING LIGHT


    1. Turn the engine switch on (IG), and check the SRS warning light condition.

      Tech Tips

      If this trouble occurs, the SRS warning light is off. If it is on, a DTC is output. Troubleshoot for the output DTC.

      OK
      After the primary check period, the SRS warning light goes off.

      Tech Tips

      The primary check period is approximately 6 seconds after the engine switch is turned on (IG).


    NG

    GO TO DTC CHART Click here

    OK

  2. 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 the airbag cut off switch.

      OK
      The connectors are properly connected.

      Tech Tips

      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 airbag cut off switch.

    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 INSTRUMENT PANEL WIRE (OPEN)


    1. A01606JE04

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

      Standard Resistance
      Tester Connection Condition Specified Condition

      J91-2 (PMC+) -

      J91-1 (PMC-)

      		 Always Below 1 Ω

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  4. CHECK INSTRUMENT PANEL WIRE (SHORT)


    1. A0162FEE04

      Release the activation prevention mechanism built into connector B Click here.

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

      Standard Resistance
      Tester Connection Condition Specified Condition

      J91-2 (PMC+) -

      J91-1 (PMC-)

      		 Always 1 MΩ or higher

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  5. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)


    1. A0162FEE04

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

      Standard Resistance
      Tester Connection Condition Specified Condition

      J91-2 (PMC+) -

      Body ground

      		 Always 1 MΩ or higher

      J91-1 (PMC-) -

      Body ground

      		 Always 1 MΩ or higher

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

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


    1. A0162FEE04

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

    2. Turn the engine switch on (IG).

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition

      J91-2 (PMC+) -

      Body ground

      		 Engine switch on (IG) Below 1 V

      J91-1 (PMC-) -

      Body ground

      		 Engine switch on (IG) Below 1 V

    NG

    REPLACE INSTRUMENT PANEL WIRE

    OK

  7. CHECK AIRBAG CUT OFF SWITCH


    1. A0161WOE01

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

      Standard Resistance
      Tester Connection Manual Cut Off Switch Condition Specified Condition

      J91-2 (PMC+) -

      J91-1 (PMC-)

      		 Cut off switch is in ON position 360 to 440 Ω

      J91-2 (PMC+) -

      J91-1 (PMC-)

      		 Cut off switch is in OFF position 90 to 110 Ω

    NG

    REPLACE AIRBAG CUT OFF SWITCH

    OK

    REPLACE CENTER AIRBAG SENSOR ASSEMBLY Click here