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Moduł sterowania nadwoziem (BCM) — usterka wewnętrzna
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Sprawdź szczegóły →B1040
KrytycznyCode B1040 indicates a failure of the airbag system control module (SRS). This may prevent the airbags from deploying correctly in an accident.
Code B1040 indicates a fault in the airbag system. This means that passenger safety during a collision may be seriously compromised. If the SRS warning light is on, immediately go to a diagnostics specialist – do not risk your life.
Symptoms
Airbag warning light (SRS) illuminated, possible lack of system readiness for an accident, in some vehicles also CAN communication fault messages.
Possible causes
Faulty airbag control module Damaged or corroded electrical connections in the SRS circuit Moisture in the control module In some vehicles (e.g., Mercedes), a problem with CAN communication (data bus)
Affected systems
System SRS (poduszki powietrzne)Moduł sterujący SRSKomunikacja CAN (w niektórych pojazdach)
Related codes
Code B1040 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Sources and further reading
Does code B1040 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.