U0140Średni
Utrata komunikacji z BCM (moduł nadwozia)
Komunikacja sieciowa
Sprawdź szczegóły →B1160
WysokiLoss of communication between the gauge module and the door multiplex unit (door lock switch) or short circuit of the right side curtain airbag (Toyota/SRS).
OBD-II (EN): Instrument Cluster to Door Multiplex Unit Communication Error or Right Side Airbag Curtain Short Circuit
Code B1160 is a body fault signaling a loss of communication between the gauge module and the door electronics, or – in Toyota vehicles – a short circuit in the side curtain airbag circuit. The cause could be a damaged wiring harness, a faulty control module, or a data bus problem. Due to the potential impact on the airbag system, diagnosis should be left to a specialist.
Symptoms
Electrically controlled door locks not working or working incorrectly; no communication between the gauge module and doors; possible deactivation of side airbags (curtains) in Toyota vehicles; SRS or CHECK ENGINE warning light on the dashboard; incorrect readings on the door control panel.
Possible causes
• Faulty or defective Gauge Control Module • Open circuit or short circuit in the CAN/LIN bus connecting the door module to the gauges • Faulty Door Multiplex Control Unit • Corrosion or loose connectors in the door wiring harness (especially at the door hinge) • Toyota: short circuit in the right side curtain airbag circuit (sensor or squib)
Affected systems
Body Control Module (BCM)Door Multiplex Control UnitGauge Control ModuleSRS / Airbag System (Toyota)CAN/LIN BusCentral Locking System
Related codes
U0155Średni
Utrata komunikacji z modułem wspomagania (EPS)
Komunikacja sieciowa
Sprawdź szczegóły →Code B1160 appears in these brands
Go to messages and symptoms for your brand — there we analyze this code together with other typical alerts.
Does code B1160 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.