FixVault

Example 2

If in the Audio System Controller (ASK) is located the relative node position 0. Then the relative node position 1 is in the Instrument Cluster and in the Control Display would be the relative node position 2. The relative node position 2 of the Control Display (MCGW MOST/CAN gateway) can be read using the diagnosis. With the help of the relative node position in the Control Display and the knowledge of the installed MOST equipment in the vehicle, the location of the break can be determined. Simply work backwards: 

(The ring interruption lies between the controller whose stored relative node number is 0 and the controller that comes before it in the MOST network!)

IMPORTANT: When counting backwards from the Control Display, for the Multimedia Changer and the navigation system controllers a counting jump of 2 controllers are made!  (Each controller counts as 2 nodes) This is described best with the help of a further example: