Download EMS Professor - AE Tools & Computers

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Opto-isolator wikipedia, lookup

Pulse-width modulation wikipedia, lookup

Islanding wikipedia, lookup

Heterodyne wikipedia, lookup

Ground loop (electricity) wikipedia, lookup

Ignition system wikipedia, lookup

Dynamic range compression wikipedia, lookup

Spectral density wikipedia, lookup

Carman scanFor EMS PROfesor
1.11.4 Vehicle Speed Sensor Field Service Example
Field example of VS sensor malfunction : Signal noise detection
Cause of
Grandure XG V6 2.0L DOHC vehicle: Vehicle take off with 2 or 3 gear shifting.
Acceleration is impossible and VS is displayed with 40 - 70 Km/H on scanner
even if vehicle stop.
Too much noise is detected in VS signal. ECU identify driving with high speed.
All vehicles (Especially in case that ECU receive VS signal from TCU)
Signal view
VS signal with problem detection
VS signal is not related to shape.
Only check how many detect signal above 1.0 volt per 1sec.