CAN bus ML350 04' - Mercedes-Benz Forum

 
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post #1 of 9 (permalink) Old 01-22-2010, 10:43 AM Thread Starter
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CAN bus ML350 04'

Is it one common CAN bus in this car connecting all the module or do does it exist several independent can buses? it's a little difficult to decide from the wiring schematics.
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post #2 of 9 (permalink) Old 01-22-2010, 12:09 PM
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It certainly has more than one CAN bus.
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post #3 of 9 (permalink) Old 01-22-2010, 01:22 PM
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There should be only be one CAN OBDII connection in the car.


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post #4 of 9 (permalink) Old 01-22-2010, 01:34 PM
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Quote:
Originally Posted by FCPGroton View Post
There should be only be one CAN OBDII connection in the car.
Yes but I did not interpret that being asked.
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post #5 of 9 (permalink) Old 01-23-2010, 01:07 AM Thread Starter
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Quote:
Originally Posted by Diesel Benz View Post
Yes but I did not interpret that being asked.
Yes you're right, thanks.
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post #6 of 9 (permalink) Old 01-23-2010, 04:14 AM
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It's not possible to generalize here. I have identified Can-B, Can-C, MOST and LIN bus. Some systems use only one, others use more than one.

For example, transmission uses only Can-C bus. Airbags, Horn, Parktronic use both Can-B and Can-C.

Radio control uses MOST, Can -B and Can-C. Heated seats use Can-B and LIN. It is not simple.
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post #7 of 9 (permalink) Old 01-23-2010, 04:23 AM
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If I can clarify this a little, all MB BMW and most other modern German cars use more than one Control Area Network. The different CAN bus systems do sometimes use the same wiring but rarely.

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post #8 of 9 (permalink) Old 01-23-2010, 11:22 AM
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nilstores - could you do the forum the courtesy of filling in some details with UserCP ^^^ to let us know your location, etc.

From your previous thread on this topic, you are mainly interested in the engine control, which is handled by CAN-C. Can-B is used for Interior control functions.

The BUS/module connection details can be put on 5 jpeg images using a screen grab from my WIS DVD. If you pm me with an email address, I will send those images as attachments which you can then print out.
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post #9 of 9 (permalink) Old 01-27-2010, 01:12 PM Thread Starter
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Thanks to everyone, I've got the the information now
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