8B
“AIR BAG” Warning Lamp Does Not Come ON
Wiring Diagram
Refer to “AIR BAG” Warning Lamp Comes ON Steady .
Flow Test Description
Step 1: Check for combination meter power feed circuit.
Step 2: Check for electrical connection check mechanism in SDM connector.
Step 3: Check for “AIR BAG” warning lamp circuit.
Step 4: Check for open in “AIR BAG” warning lamp circuit.
Step 5: Check for short from “AIR BAG” warning lamp circuit to power circuit.
Troubleshooting
Step Action YES NO
1
1) Set parking brake.
2) Note combination meter when ignition switch is turned ON.
Does the “BRAKE” indicator (warning lamp) come ON?
Go to Step 2.
“BLK/BLU”, “BLK/RED” wire or “METER” fuse open or short to ground.
2
1) Disconnect SDM connector “G102”.
2) Check electrical connection check mechanism. (Connection detecting pin and “L1” and “L2” terminals for dents, cracks or damages.)
Is it in good condition?
Go to Step 3.
Repair electrical connection check mechanism.
3
1) Check proper connection to SDM at terminal “G102-2”.
2) If OK, check voltage from “G102-2” terminal of SDM connector to body ground with ignition switch ON.
Special Tool
(A) : 09932–76010
Is it 8 V or more?
Substitute a known-good SDM and recheck.
Go to Step 4.
4
1) Check proper connection to combination meter at “BLU” terminal for “AIR BAG” warning lamp and to SDM at terminal “G102-2”.
2) If OK, check resistance between “BLU” wire terminal of combination meter connector “G92” (20-pin connector) and “G102-2” terminal of SDM connector.
Special Tool
(A) : 09932–76010
Is resistance 1 Ω or less?
Go to Step 5.
Repair high resistance or open in “BLU” wire circuit (between combination meter and SDM).
5
1) Measure voltage from “G102-2” terminal of SDM connector to body ground with ignition switch ON.
Special Tool
(A) : 09932–76010
Is it 0 V or more?
Repair short from “BLU” wire circuit (between combination meter and SDM) to power circuit.
Substitute a known-good SDM and recheck.
NOTE:
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components, ensure all components are properly mounted.
• Repeat Air Bag Diagnostic System Check to confirm that the trouble has been corrected.