Dtc B1021: Air Bag Module Deployed - Suzuki GRAND VITARA Owner's Manual

DTC B1021: Air Bag Module Deployed

DTC Will Set when
The SDM detects a crash of sufficient force to warrant activation of the air bag system. (SDM outputs a deployment
command.)
Flow Test Description
Step 1: Check that DTC B1021 has been set although air bag has not been deployed.
Step 2: Check that DTC has been set due to failure of SDM.
NOTE
Before executing items in this flow, be sure to perform "Air Bag Diagnostic System Check: ".
DTC Troubleshooting
Step
1 1) Turn ignition switch OFF.
Has air bag deployed?
2 1) Inspect front of vehicle and undercarriage for signs of
impact.
Are there signs of impact?
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.
• Repeat "Air Bag Diagnostic System Check: " to confirm that the trouble has been corrected.
• Clear DTCs of BCM referring to "DTC Clearance: in Section 10B"
Action
Air Bag System:
Yes
Replace components
and perform inspections
as directed in "Repair
and Inspection
Required after Accident:
".
Replace components
and perform inspections
as directed in "Repair
and Inspection
Required after Accident:
".
8B-29
S5JB0A8204014
No
Go to Step 2.
Substitute a known-
good SDM and recheck.