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Suzuki SX4 Service Manual page 1142

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8B-49 Air Bag System:
Step
3
Seat belt pretensioner circuit resistance check
1) Disconnect special tools from applicable seat belt
pretensioner connector.
2) Disconnect SDM connector "L04".
3) Check for proper connection to SDM at terminals "L04-7"
and "L04-8" (for DTC B1051) or terminals "L04-9" and
"L04-10" (for DTC B1055).
4) If OK, release shorting bar in SDM connector inserting
release tool (1) included in special tool (A).
5) Measure resistance between "L04-7" and "L283-2", and
between "L04-8" and "L283-1" (for DTC B1051).
6) Measure resistance between "L04-9" and "L285-1", and
between "L04-10" and "L285-2" (for DTC B1055).
"L04-7"
"L04-8" "L04-9" "L04-10"
"L238-1"
"L235-1"
Is each measured resistance 1
NOTE
Upon completion of inspection and repair work, perform the following items.
• Reconnect all air bag system components and ensure all components are properly mounted.
• Clear DTCs referring to "DTC Clearance", if any.
• Repeat "Air Bag Diagnostic System Check" to confirm that the trouble has been corrected.
Action
(A)
1,(A)
"L238-2"
"L235-2"
I7RW01822058-01
or less?
Yes
Substitute a known-
good SDM and recheck.
No
Repair open or high
resistance wire in
defective circuit.

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