Network traffic uses time on the bus, but a slow diagnostic response can also involve the tool, gateway or target module. One percentage does not settle the cause.

What to check next

Compare the same supported operation in a controlled vehicle state and record when the delay begins. Note concurrent diagnostic sessions or accessories without disconnecting them indiscriminately. Separate a repeatable communication delay from an operation that legitimately takes time.

Useful information for an enquiry

Keep the requested function, response timing, interface details and any timeout message.

Avoid adding a second active tester to speed up diagnosis. The test plan should limit its own impact on the network and preserve the original complaint.

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 Kvaser. The referenced design explains the principle; the vehicle-specific procedure determines the repair.