AIRBAG SYSTEM (DIAGNOSTICS) > Airbag Warning Light Failure

DETECTING CONDITION:

• Fuse No. 14 (in fuse box) is brown out.

• Body harness circuit is open.

• Airbag warning light failure

• Airbag main harness is faulty.

• Airbag control module is faulty.

CAUTION:

• Before diagnosing the airbag system, be sure to turn the ignition switch to OFF, disconnect the ground terminal from battery, and wait 20 seconds or more before starting to work.

• When inspecting the airbag main harness, disconnect the airbag module connectors of the driver’s and passenger’s seats for safety.

WIRING DIAGRAM:

• LHD model

• RHD model

STEP	CHECK	YES	NO
1.CHECK COMBINATION METER. Turn the ignition switch to ON, and confirm that warning light embedded in the combination meter illuminates.	Do the warning lights except for the airbag illuminate?		Repair the power supply to combination meter.
2.CHECK DTC. Read the DTC.	Is DTC displayed?	Perform the diagnosis according to DTC.
3.CHECK FUSE NO. 14 (IN MAIN FUSE BOX). Remove the fuse No. 14 and perform visual inspection.	Is the fuse No. 14 (in main fuse box) blown out?	Replace the fuse No. 14. If fuse No. 14 is blown out again, go to step 3.
4.CHECK AIRBAG WARNING LIGHT CIRCUIT (IN COMBINATION METER). 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 20 seconds or more. 2) Disconnect the connector (AB1) from (B31). 3) Connect the battery ground terminal and turn the ignition switch to ON.	Does airbag warning light illuminate?		Replace the airbag warning light bulb or combination meter printed circuit.
5.CHECK AIRBAG MAIN HARNESS. 1) Turn the ignition switch to OFF, disconnect the battery ground cable, and wait for 20 seconds or more. 2) Connect the connector (AB1) to (B31). 3) Disconnect the connector (AB3) from airbag control module. 4) Connect the battery ground terminal and turn the ignition switch to ON.	Does airbag warning light illuminate?	Replace the airbag control module.	Replace the airbag main harness along with body harness.