Suzuki SX4 Service Manual page 1141

Step
2 Seat belt pretensioner circuit check
1) With ignition switch turned OFF, remove center pillar
lower trim of applicable side and disconnect seat belt
pretensioner connector "L283" or "L285".
2) Check for proper connection to applicable seat belt
pretensioner at terminals in "L283" or "L285" connector.
3) If OK, then connect special tools (A), (B) and (C) to
"L283" or "L285" connector disconnected in Step 1).
Special tool
(A): 09932–76010
(B): 09932–75010
(C): 09932–78310
(C)
(B)
4) Check SDM for DTC.
With ignition switch turned ON, is DTC B1051 or B1055 still
indicated?
Action
(A)
"L283", "L285"
STEERING WHEEL
Yes
Go to Step 3.
I7RW01822057-01
Air Bag System: 8B-48
No
Replace defective seat
belt pretensioner
referring to "Front Seat
Belt Removal and
Installation in Section
8A".