parrafin23 wrote:

Your Garage is correct, this behaviour is normal on the D3 when there is an issue with the canbus network OR a module that drops out of the network. Hazards on, door locks goes bananas and that message on the radio. Seen it, Done it, and Fixed it.

IIDTool can give you pointers on where to start looking, Start by writing down what modules are complaining about what module they have lost coms with and go from there.

Look at the communication network to get an overview of all the modules and how they are connected together.
All the modules are connected in series. I usualy start from the Abs module, I call it "the start of the track" and the instrument panel is the end of the "track".

Next time the car goes bananas on you, remove the negative lead on the battey Grab a MM and put it to ohm
Find the DLC (Diagnostic port) and probe pin 6 & 14. If everything is normal, then your MM should display 60 ish
If it displays 120 ish, then you know you have a canbus issue.
Now its time to slap on the investigation hat.

When I see 120 on the MM i look at the module communication network and split it in half. Trying to figure out in what direction i have to go to narrow down the search.
Go for the EAS module thats located in the A pilar Left hand side, a bit up there.
Now look for 4 wires in the same connector, they are Yellow with black trace and Yellow with brown trace. These are the Canbus wires you are after. Pin 16 to 19 is the canbus pins
Now use your MM and measure Pin 16 & 19, Should be 120.
Measure pin 17 & 18 Should be 120 ish.

find the pair that displays OL or something like that and look at the wiring diagram and see what direction to go from there


If its a 2007 / 2008 model, it might be the Instrument Cluster gone bad.

Mr.P