Suzuki SX4 Service Manual page 1169

Step
3 Driver / passenger curtain-air bag circuit check
1) Disconnect special tools from applicable side curtain-air
bag connector.
2) With ignition switch turned OFF, disconnect SDM
connector "L04".
3) Check for proper connection to SDM connector at
terminal "L04-19" and "L04-20" (for DTC B1361) or
terminal "L04-21" and "L04-22" (for DTC B1365).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
Special tool
(A): 09932–76010
5) Measure resistance at following connector terminals (for
DTC B1361).
• Between "L04-19" and "Q103-2" terminals, between
"L04-20" and "Q103-1" terminals. (hatchback model)
• Between "L04-19" and "L291-2" terminals, between
"L04-20" and "L291-1" terminals. (sedan model)
6) Measure resistance at following connector terminals (for
DTC B1365).
• Between "L04-21" and "Q102-1" terminals, between
"L04-22" and "Q102-2" terminals. (hatchback model)
• Between "L04-21" and "L290-1" terminals, between
"L04-22" and "L290-2" terminals. (sedan model)
"L04-19" "L04-20" "L04-21" "L04-22"
Is each measured resistance 1
Action
"Q103", "Q102", "L291", "L290"
1 2
(A)
1
I6RW0B820011-02
Ω
or less?
Air Bag System:
Yes
Substitute a known-
good SDM and recheck.
8B-76
No
Hatchback model: Go to
Step 4.
Sedan model:
Repair high resistance
or open wire in "YEL/
GRN" or "YEL/BLU"
circuit at floor harness.
(for DTCB1361)
Repair high resistance
or open wire in "BLK/
YEL" or "BRN/YEL"
circuit at floor harness.
(for DTCB1365)