Code U1726 reports a loss of communication between the instrument cluster and the airbag control unit. On the Fiat 500 1.2 it shows up as the airbag light on, the odometer flashing and the seat belt buzzer not working.
- System
- Airbags
- Component
- Airbag control unit
- Fault
- The airbag light comes on, the odometer flashes and the seat belt light and buzzer stop working.
- Typical symptoms
-
- Airbag light on
- Flashing odometer
- The seat belt warning light does not work
- The seat belt buzzer does not sound
- Vehicles affected
-
- Fiat 500 1.2
- Main code
-
- U1726 No communication between the instrument cluster and the airbag control unit
- Related codes
-
- B10AA Proxy alignment check
- U0019 CAN data bus, communication fault
- U0422 Active suspension control unit, invalid data received
- U1703 CAN data bus, instrument cluster control unit, fault
On this fault the diagnostic tool often returns several codes together.
- Solution
-
See the repair procedure verified on Sema Repair.
The cause and the repair are on Sema Repair
On Sema Repair this code is linked to verified case studies, with the confirmed cause case by case, the job step by step, indicative times, the manufacturer's notes and a photograph of the component with the point of intervention highlighted.