A SENT message includes timing information used to interpret the following pulses. An incorrect timing assumption can turn a stable-looking signal into meaningless decoded values.

What to check next

Check the calibration portion of the raw trace and the decoder configuration for the identified sensor. Compare the result over several messages rather than selecting a single convenient pulse. If the timing itself is unstable, investigate the signal and supply before interpreting any displayed measurement.

Useful information for an enquiry

Send the raw waveform, sensor identity and decoder settings.

Timing must be assessed against the sensor specification. Do not replace a sensor solely because one automatic decoding attempt fails.

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.