“AIR BAG” Warning Light Comes ON Steady

Precautions: Precautions for Air Bag System Service · Precautions for Handling and Storage of Air Bag System Components · Precautions for Disposal of Air Bag and Seat Belt Pretensioner · Precautions for Restraint · General safety (00)

Circuit Diagram

[A]:	4WD model	1.	IG1 relay	8.	CAN driver
[B]:	“G240” connector (View: [a])	2.	SDM	9.	“AIR BAG” warning light
[C]:	“L04” connector (View: [a])	3.	J/B	10.	P/S control module
A1:	Combination meter power supply circuit	4.	“MTR” fuse	11.	4WD control module
A2:	Combination meter ground circuit	5.	“A/B” fuse	12.	Floor harness
B1:	SDM power supply circuit	6.	Combination meter	13.	Instrument panel harness
B2:	SDM ground circuit	7.	CPU (Combination meter)

Troubleshooting

Step	Action	Yes	No
1	SDM connector check 1)Check for proper connection to “L04” connector. Is connection in good condition?	Go to Step 2.	Connect connector securely.
2	DTC check 1)Perform DTC Check. Is there any DTC(s)?	Go to applicable DTC troubleshooting.	Go to Step 3.
3	SDM power supply and ground circuit check 1)Check SDM power supply circuit and ground circuit. Are the circuits in good condition?	Go to Step 4.	Repair “B1” and “B2” circuits.
4	CAN communication circuit check 1)Check CAN communication circuit between SDM and combination meter. Is circuit in good condition?	Go to Step 5.	Repair defective wire harness.
5	Combination meter check 1)Replace combination meter. 2)Set ignition “ON”. Does “AIR BAG” warning light stay on?	Replace SDM and recheck “AIR BAG” warning light operation.	End.

NOTE:

Upon completion of inspection and repair work, perform the following items.

•Reconnect all air bag system components and check that all components are properly mounted.
•Repeat Air Bag Diagnostic System Check to check that the trouble has been solved.