Driver Side Seat Belt Warning Light does not Operate [10/2014 - ]: Procedure

1. Clear DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).
2. Check for DTCs (Refer to DTC CHECK / CLEAR [10/2014 - ] ).

   Result

   Result	Proceed to
   DTCs are not output	A
   DTCs are output	B

Result: 

B 

GO TO AIRBAG SYSTEM 

(Refer to HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 10/2015] or HOW TO PROCEED WITH TROUBLESHOOTING [10/2015 - ] )

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the engine switch on (IG).
3. Turn the Techstream on.
4. Enter the following menus: Body Electrical / SRS Airbag / Data List.
5. Read the Data List according to the display on the Techstream.
   SRS AIRBAG
   
   

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Left side Buckle SW	LH buckle switch/Unset, Set or NG	Unset: Seat belt not fastened Set: Seat belt fastened NG: Data is not determined	-

   RESULT
   
   

   Result	Proceed to
   Unset or Set is displayed on the Techstream screen according to the driver seat belt condition	A
   Unset or Set is not displayed normally on the Techstream screen according to the driver seat belt condition	B
   NG is displayed on the Techstream screen	C

Result: 

B 

REPLACE FRONT SEAT INNER BELT ASSEMBLY LH 

(Refer to REMOVAL [10/2014 - 10/2015] or REMOVAL [10/2015 - ] )

Result: 

C 

REPLACE AIRBAG ECU ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )

Result: 

A 

See step  3

1. Replace the main body ECU (multiplex network body ECU) (Refer to REMOVAL [10/2014 - ] ).

Result: 

NEXT 

See step  4

1. Check the operation of the seat belt warning light (Refer to ON-VEHICLE INSPECTION [10/2014 - ] ).

   OK

   The seat belt warning light operates normally.

Result: 

OK 

END (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) WAS DEFECTIVE) 

Result: 

NG 

REPLACE COMBINATION METER ASSEMBLY 

(Refer to REMOVAL [10/2014 - ] )