Renault Airbag Lock/Unlock Computer

Supported coding features by RenCOM diagnostic tool https://www.obdtester.com/rencom

Airbag Control Unit Lock / Unlock

What it does

• Locks or unlocks the airbag (SRS) control unit
• Enables or disables airbag deployment after crash data handling
• Restores airbag system functionality after repair or replacement

When it is required

• After a collision event
• After airbag control unit replacement
• After clearing crash data (where supported)
• When SRS/airbag warning light is active due to lock status

Conditions that must be met

• Vehicle stationary
• Ignition OFF (then ON as prompted by diagnostic tool)
• Stable battery voltage
• Diagnostic tool connected
• No unresolved critical SRS faults

What happens during lock / unlock

• Airbag control unit status is changed (locked or unlocked)
• Crash-related restrictions are cleared if allowed
• Communication with other control units is restored
• SRS warning light status is updated

If lock / unlock is not performed

• Airbag system remains disabled
• SRS warning light stays ON
• Vehicle safety systems are compromised

After lock / unlock

• Clear all SRS fault codes
• Verify airbag system status in live data
• Perform system self-test
• Confirm airbag warning light turns OFF

Coverage in RenCOM