LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2012 >> Grand Vitara Base >> Repair and Diagnosis >> Restraints >> Air Bag, SRS >> Air Bag System >> Advanced Air Bag >> Diagnostic Information and Procedures >> DTC B1021: Air Bag Module Exploded >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

Step Action Yes No
Was "Air Bag Diagnostic System Check" performed?  Go to Step 2. Go to AIR BAG DIAGNOSTIC SYSTEM CHECK  .
  1. Turn ignition switch OFF.

Has front-air bag deployed? 
Replace components and perform inspections as directed in REPAIR AND INSPECTION REQUIRED AFTER ACCIDENT  . Go to Step 3.
  1. Inspect front of vehicle and undercarriage for signs of impact.

Are there signs of impact? 
Replace components and perform inspections as directed in REPAIR AND INSPECTION REQUIRED AFTER ACCIDENT  . Substitute a known-good SDM and recheck.
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. Refer to DTC CLEARANCE .