Toyota Tundra (2015 year). Manual — part 2974
A
1.
CHECK DTC (AIRBAG SYSTEM)
(a) Clear DTCs
.
(b) Recheck for DTCs
.
Result
RESULT
PROCEED TO
DTC is not output
A
DTC is output
B
B
GO TO AIRBAG SYSTEM
2.
READ VALUE USING TECHSTREAM (DRIVER BUCKLE SW)
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / SRS Airbag / Data List.
(e) Read the Data List according to the display on the Techstream.
SRS Airbag (Center Airbag Sensor Assembly)
TESTER DISPLAY
MEASUREMENT ITEM / RANGE
NORMAL CONDITION
DIAGNOSTIC NOTE
Driver Buckle SW
Driver 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 (for Column Shift Type)
C
NG is displayed on the Techstream screen (for Floor Shift Type)
D
SEAT BELT: SEAT BELT WARNING SYSTEM: Driver Side Seat Belt ...
A
NEXT
B
REPLACE FRONT SEAT INNER BELT ASSEMBLY LH
C
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
D
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
3.
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY)
(a) Replace the main body ECU (driver side junction block assembly) with a new one.
4.
CHECK SEAT BELT WARNING LIGHT
.
OK:
The seat belt warning light operates normally.
NG
REPLACE COMBINATION METER ASSEMBLY
OK
END (MAIN BODY ECU [DRIVER SIDE JUNCTION
BLOCK ASSEMBLY] WAS DEFECTIVE)
SEAT BELT: SEAT BELT WARNING SYSTEM: Driver Side Seat Belt ...
Last Modified: 9-16-2014
6.6 J
Doc ID: RM0000014DL0E9X
Model Year: 2015
Model: Tundra
Prod Date Range: [08/2014 - ]
Title: SEAT BELT: SEAT BELT WARNING SYSTEM: Front Passenger Side Seat Belt Warning Light Malfunction;
2015 MY Tundra [08/2014 - ]
Front Passenger Side Seat Belt Warning Light Malfunction
DESCRIPTION
When the ignition switch to ON, the occupant detection ECU sends a signal to the center airbag sensor assembly to
communication. The combination meter assembly illuminates, blinks or turns off the seat belt warning light on the
combination meter assembly in accordance with these signals.
HINT:
The seat belt warning light on the combination meter assembly is used for both the driver seat and front
passenger seat.
WIRING DIAGRAM
SEAT BELT: SEAT BELT WARNING SYSTEM: Front Passenger Side Se...
INSPECTION PROCEDURE
NOTICE:
The seat belt warning system uses the CAN communication system. First, confirm that there is no
malfunction in the CAN communication system. Refer to the How to Proceed with Troubleshooting
procedure
.
PROCEDURE
SEAT BELT: SEAT BELT WARNING SYSTEM: Front Passenger Side Se...
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