AIRBAG SYSTEM > Trouble in Passenger Airbag ON/OFF Indicator

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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 and the front passenger side front seat side airbag stop functioning.

WIRING DIAGRAM


C128692E01


INSPECTION PROCEDURE

1.CHECK SRS WARNING LIGHT

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

    OK:
    The SRS warning light does not come on.


NG
CHECK FOR DTC
OK


2.CHECK CONNECTOR

  1. Turn the ignition switch off.

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

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

    OK:
    The connectors are properly connected.


NG
CONNECT CONNECTOR
OK


3.INSPECT AIRBAG CUT-OFF SWITCH
C128731E01

  1. Disconnect the E68 passenger airbag manual cut-off switch connector.

  1. Measure the resistance of the wire harness side connector.

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


NG
REPLACE AIRBAG CUT-OFF SWITCH
OK


4.CHECK INSTRUMENT PANEL WIRE (FOR OPEN)
H100193E05

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

  1. Using a service wire, connect E68-1 (PMC-) and E68-2 (PMC+) of connector C.

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

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E49-11 (MSW+) - E49-12 (MSW-)
    		Below 1 Ω


NG
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK


5.CHECK INSTRUMENT PANEL WIRE (FOR SHORT)
H100192E04

  1. Disconnect the service wire from connector C.

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E49-11 (MSW+) - E49-12 (MSW-)
    		1 MΩ or higher


NG
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK


6.CHECK INSTRUMENT PANEL WIRE (TO B+)
H100192E04

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

  1. Turn the ignition switch on (IG).

  1. Measure the voltage of the wire harness side connector.

    Standard voltage:
    Tester Connection
    		Specified Condition
    E49-11 (MSW+)- Body ground
    		Below 1 V
    E49-12 (MSW-) - Body ground
    		Below 1 V


NG
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK


7.CHECK INSTRUMENT PANEL WIRE (TO GROUND)
H100192E04

  1. Turn the ignition switch off.

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

  1. Measure the resistance of the wire harness side connector.

    Standard resistance:
    Tester Connection
    		Specified Condition
    E49-11 (MSW+) - Body ground
    		1 MΩ or higher
    E49-12 (MSW-) - Body ground
    		1 MΩ or higher


NG
REPAIR OR REPLACE INSTRUMENT PANEL WIRE
OK

REPLACE CENTER AIRBAG SENSOR ASSEMBLY