Repeated link changes describe instability in the connection. They do not by themselves distinguish cable, power or controller behaviour.

How to narrow it down

Correlate each drop with the relevant module supply and the customer’s complaint. Note whether the interface itself disconnects from the laptop. A clear timeline helps avoid blaming vehicle wiring for a tool interruption, or dismissing a real power loss as a software issue.

What to include with the fault report

Keep timestamps from both the diagnostic application and any independent electrical recording.

Repeated restarts are observations, not a repair method. Establish the cause before relying on another reconnect or reset.

Speak to AXION

For CAN-bus and vehicle-network diagnostics, send your vehicle details and fault report. Workshop assessment is in Didcot, Oxfordshire. Suitable postal or remote work is confirmed before booking.

Technical background from Texas Instruments. The referenced design explains the principle; the vehicle-specific procedure determines the repair.

Related reading — FlexRay start-up faults on an incomplete bench setup. Browse all vehicle-electronics diagnostic notes or return to the repair library.