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W168 Long 2004 - FTC ECU Problem - CAN BUS Comm.

919 Views 2 Replies 3 Participants Last post by  hayujs
Hello Everyone,
I've been using this car for over than 2 years.
There was a similar fault when I first bought it, but when I changed the ftc ecu, the problem was gone.
I've been having the same problem for about 2 months and this time it doesn't get better even though I changed it with the new one.
When we connect the vehicle to the machine, we do not see the FTC ECU and therefore we cannot get an error code.
It only gives CAM BUS communication error.
The master says he checked all the electrical cables that might be related to the glass, but the problem still persists. When we turn the key, the 1-second P signal comes and goes. It does the same with D or R, but it just disappears.
Does anyone know that is there any specific reason causes this problem ?
Thank you in advance for your replies, i really appreciate that.
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Had a farm truck with discontinuous CANbus correspondence code being set by ECU and dropping motor RPM to sit. I checked CAN high and low and found what seems a discontinuous short? Issue happens while hitting a knock. I'm generally searching for a little knowledge/prompt as to in the event that I'm deciphering the waveform accurately.
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