Suzuki Swift Sport 2004 Service & Repair Manual page 1063

DTC Will Set when
The combined resistance of the driver air bag (inflator) module, contact coil assembly, harness wiring and connector
terminal contact is above a specified value for specified time.
Flow Test Description
Step 1: Check whether malfunction is in contact coil and driver air bag (inflator) module or the others.
Step 2: Check driver air bag (inflator) module initiator circuit. (in instrument panel and floor harness)
Step 3: Check driver air bag (inflator) module initiator circuit. (in floor harness)
Step 4: Check whether malfunction is in contact coil or driver air bag (inflator) module.
DTC Troubleshooting
Step
1 1) With ignition switch OFF, disconnect contact coil
connector located under of the steering column.
2) Check proper connection to contact coil at terminal in
"G26" connector.
3) If OK, then connect special tools (B) and (C) to "G26"
connector disconnected in Step 1).
Special tool
(B): 09932-75010
(C): 09932–78340
"G26"
BASE OF COLUMN
4) Check SDM DTC.
With ignition switch ON, is DTC B1031 indicated?
Action
(C)
(B)
I4RS0A820014-01
Air Bag System:
Yes
Go to Step 2.
8B-25
No
Go to Step 4.