Trouble in Passenger Airbag ON / OFF Indicator

DESCRIPTION

This circuit detects the manual cut off switch status.
The passenger airbag ON/OFF indicator comes on to inform the passengers of the front passenger airbag assembly, front passenger side knee airbag assembly and the front seat side airbag assembly (passenger side) status (activated or deactivated).

HINT:

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

Manual 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

INSPECTION PROCEDURE

1. CHECK SRS WARNING LIGHT

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

   HINT:

   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, SRS warning light goes off.
   

   HINT:

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

NG	CHECK DTC

OK

2. CHECK CONNECTION OF CONNECTORS

1. Turn the engine 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 cylinder.

   OK:

   The connectors are properly connected.
   

NG	CONNECT CONNECTORS, THEN GO TO STEP 1

OK

3. CHECK INSTRUMENT PANEL WIRE (OPEN)

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

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	Below 1 Ω

NG	REPAIR OR REPLACE INSTRUMENT PANEL WIRE

OK

4. CHECK INSTRUMENT PANEL WIRE (SHORT)

1. Release the activation prevention mechanism built into connector "B".

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	REPAIR OR REPLACE INSTRUMENT PANEL WIRE

OK

5. CHECK INSTRUMENT PANEL WIRE (SHORT TO GROUND)

1. 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	REPAIR OR REPLACE INSTRUMENT PANEL WIRE

OK

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

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

2. Turn the engine switch on (IG).

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

   Standard voltage:

   Tester connection	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	REPAIR OR REPLACE INSTRUMENT PANEL WIRE

OK

7. CHECK AIRBAG CUT OFF SWITCH CYLINDER

1. Turn the engine switch off.

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

3. 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 CYLINDER

OK
REPLACE CENTER AIRBAG SENSOR ASSEMBLY