10B-16 AIR BAG SYSTEM
TABLE TEST DESCRIPTION
“AIR BAG” Warning Lamp Comes ON Steady:
STEP 1 : Check for “AIR BAG” fuse blown.
STEP 2 : Check for loose connection between SDM connector and SDM.
STEP 3 : Check for power supply circuit.
STEP 4 : Check for short circuit between “AIR BAG” warning lamp circuit and ground.
“AIR BAG” Warning Lamp Does Not Come ON:
STEP 1 : Check for combination meter power supply circuit.
STEP 2 : Check for “AIR BAG” warning lamp blown.
STEP 3 : Check for open circuit in “AIR BAG” warning lamp circuit.
STEP 4 : Check for short circuit between “AIR BAG” warning lamp circuit and power supply circuit.
“AIR BAG” Warning Lamp Flashes:
Check for short circuit between SDM terminal and ground.
DIAGNOSTIC FLOW TABLE
“AIR BAG” Warning Lamp Comes ON Steady
Step Action Yes No
1 1) Turn ignition switch to OFF position.
2) Remove and inspect “AIR BAG” fuse.
Is fuse good?
Go to step 2. Clear up short circuit
between “BLU/RED” wire
and ground.
After clearing up, replace
“AIR BAG” fuse.
2 1) Check for loose connection between SDM
connector “G66” and SDM.
Is connection good?
Go to step 3. Clear up loose connection
between SDM connector
“G66” and SDM.
3 1) Disconnect SDM connector “G66”.
2) Turn ignition switch to ON position.
3) Measure voltage between “G66-32” termi-
nal and body ground.
Is it 10 – 14V?
Go to step 4. Check and clear up the
following possible cause.
• Open circuit in “BLU/
RED” or “GRN” wire.
• Short circuit between
“GRN” and ground.
4 1) Disconnect “G25” connector from combina-
tion meter referring to COMBINATION
METER in Section 8.
2) Release shorting bar of “G66-30” terminal
inserting release tool (A).
3) Measure resistance between “G66-30” ter-
minal and body ground.
Is resistance infinity?
Substitute a known-good
SDM and recheck.
Clear up short circuit
between “BLU” wire and
ground.
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