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Home >> BMW >> 2011 >> 335i 4D Sedan, Standard >> Repair and Diagnosis >> Restraints >> Restraints Control Systems >> Restraint System - Functional Description -- E90 >> Restraints System - Functional Description >> Crash Safety Module (ACSM) >> Notes for Service department >> Diagnosis instructions

Diagnosis instructions

NOTE: After 3 crash signals with triggering of the safety system, replace the ACSM control unit.

The ACSM control unit stores data in a non-erasable memory after a triggering of the safety system. After 3 crash signals, the data memory is full. The airbag warning lamp lights up. The ACSM control unit must be replaced.

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