Some SENT implementations include a pause at the end of a message. A longer interval in the trace is therefore not automatically a communication dropout.

How to narrow it down

Identify the sensor format and compare the interval with the complete message structure. Check whether the gap is repeatable and expected before linking it to an engine symptom. A true interruption should be supported by the raw signal and the receiving controller’s fault evidence.

What to include with the fault report

Include several consecutive messages and the exact moment the symptom occurs.

A pause used by one sensor cannot be assumed for another. The fitted component and decoding profile determine the correct interpretation.

Speak to AXION

For complex vehicle-electronics 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 — ADC input settling can affect a module’s sensor reading. Browse all vehicle-electronics diagnostic notes or return to the repair library.