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Can bus waveforms
2 months 2 weeks ago - 2 months 2 weeks ago #64697
by Dimitar
Can bus waveforms was created by Dimitar
Hello, I have truck with modular tachograph and the speedometer on instrument cluster doesn`t work, but it shows the speed on the tachograph. The diagnostic says TCO CAN total failure. With key on engine off, instrument cluster connected and tachograph connected, the waveform looks like this:
Key on engine off, instrument cluster disconnected and tachograph connected, the waveform looks like this (both channels on 500mv) :
Key on engine off, instrument cluster connected and tachograph disconnected, the waveform looks like this:
I think the failure is in the tachograph, and if I change the tachograph the problem will be gone. What`s your opinions?
Thanks
Dimitar
Key on engine off, instrument cluster disconnected and tachograph connected, the waveform looks like this (both channels on 500mv) :
Key on engine off, instrument cluster connected and tachograph disconnected, the waveform looks like this:
I think the failure is in the tachograph, and if I change the tachograph the problem will be gone. What`s your opinions?
Thanks
Dimitar
Last edit: 2 months 2 weeks ago by Dimitar.
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