Dtc B1021: Front Air Bag Deployment Record - Suzuki 2006 SX4 Service Manual

DTC Troubleshooting
Step
1 Was "Air Bag Diagnostic System Check Flow" performed?
2 SDM power supply and ground circuit check
1) Check SDM power supply and ground circuit referring to
"SDM Power Supply and Ground Circuit Check".
Is SDM power supply and ground circuit in good condition?
3 DTC B1017 recheck
1) With ignition switch turned OFF, reconnect SDM
connector.
With ignition switch ON, does DTC B1017 exist?
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.

DTC B1021: Front Air Bag Deployment Record

DTC Detecting Condition and Trouble Area
DTC detecting condition
Deployment of front air bag has been recorded in SDM.
NOTE
DTC B1201 can never be cleared once it has been set.
DTC Troubleshooting
Step
1 Was "Air Bag Diagnostic System Check Flow" performed?
2 Front air bag deployment check
1) Turn OFF ignition switch.
2) Check that DTC B1021 has been set although air bag
has not been deployed.
Has air bag deployed?
3 Front impact sign check
1) Inspect front of vehicle and undercarriage for signs of
impact.
Are there any signs of impact?
Action
Action
Yes
Go to Step 2.
Go to Step 3.
Substitute a known-
good SDM and recheck.
Trouble area
If this DTC has been recorded even though air bag has
not been deployed
• SDM
• Driver and/or Passenger air bag module
• Those initiator circuit.
Yes
Go to Step 2.
Inspect and replace
components according
to "Repair and
Inspection Required
after Accident".
Inspect and replace
components according
to "Repair and
Inspection Required
after Accident".
Air Bag System: 8B-28
No
Go to "Air Bag
Diagnostic System
Check Flow".
Repair defective wire
circuit.
Intermittent trouble.
Check for intermittent
trouble referring to
"Inspection of
Intermittent and Poor
Connections" If OK,
substitute a known-
good SDM and recheck.
S6RW0C8204014
No
Go to "Air Bag
Diagnostic System
Check Flow".
Go to Step 3.
Replace SDM.