B0020
WysokiCode B0020 indicates a malfunction in the left side airbag deployment control (SRS system).
Code B0020 indicates a problem with the left side airbag deployment system (SRS). This may be caused by damaged wiring, corroded connectors, or a faulty control module. Professional SRS system diagnosis is recommended.
Symptoms
Illuminated SRS (airbag) warning light. Possible ineffective deployment of the left side airbag in an accident.
Possible causes
Damaged wiring (short/open) Corroded connectors Internal failure of the airbag control module Loss of communication with the SRS module
Affected systems
System SRS (poduszki powietrzne)Układ elektrycznyModuł sterowania SRS
Sources and further reading
Does code B0020 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.