B0001Krytyczny
System poduszek powietrznych — usterka ogólna
Nadwozie
Sprawdź szczegóły →B1140
KrytycznyFault in the side airbag sensor assembly circuit (right side) – SRS system failure. The airbag diagnostic unit has detected an irregularity in the right side impact sensor circuit.
OBD-II (EN): Right Side Side Airbag Sensor Circuit Fault
Code B1140 signals a fault in the right side airbag sensor circuit (SRS system). This could mean a damaged sensor, an open circuit in the wiring, or a problem with the airbag control unit – in any case, the safety system may not function correctly in an accident. For safety reasons, we recommend immediate diagnosis by an authorized service center or SRS specialist.
Symptoms
SRS (airbag) warning light on the dashboard illuminated or flashing. The airbag system may be deactivated – right side airbags may not deploy in a collision. No visible symptoms for the driver other than the warning light.
Possible causes
• Faulty or defective right side airbag sensor – mechanical damage or wear • Open circuit or short circuit in the wiring harness leading to the right side SRS sensor • Damaged sensor electrical connector – corrosion, looseness, or burnt pins • Defect in the central SRS control unit (airbag ECU/diagnosis sensor unit) • Previous collision or impact that damaged the sensor or its wiring
Affected systems
SRS – Supplemental Restraint SystemPoduszki powietrzne boczneUkład bezpieczeństwa pasywnegoAirbag ECU / Diagnosis Sensor Unit
Related codes
Code B1140 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 B1140 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.