I think it would be polite if we don't trample over his thread over on .uk and continue here. I don't think it all applies, but the important bits certainly do so far. RichardP over at .uk has kindly shared his notes on his sniffing of the E46 Monochrome Business Navigation. from I-Bus and then send it to IKE display. I will play more over the weekend and post my results, but as I said, my idea is to resolve the format of messages sent to IKE and then programm a PIC that will read coolant temp, RPMs, Speed. I tried to connect Resler's interface to TM module pink wire (which is going to IKE) and got just some rubbish in NavCoder. Great ! Finally someone who's interested to play with IKE messages :) The messages above are from F0 (BMBT) although that may be because it's a button.Ībout 6 hours so far and not much of use as yet, although the messages abouve could be used to operate a computer driving an replacement display placed in the IKE + show other information. In the whole BMW equivelent I wonder the message centre is like a MIR? Nothing I've sent has done any good (not certain it's getting there yet!) So far I've found the Nav-Bus messages are in I/K bus format. I've been experimenting with an old IKE not in the car to see what I can do with it. If we succeed in that, I can guarantee that I will make the interface that will display coolant temperature on IPK display, or any other info being transmitted on K-BUS line (speed, RPM. When we decode the format, we can try to disconnect TM and send our own messages to IPK. What I need ? I need someone who has IBUS analyzer to connect it and log the message format being sent from TM module to IPK (through pink-black wire). So, I want to make an interface that would read coolant temperature from K-BUS line and send it to the IPK like TrafficMaster sends its own messages. The other 3 unused connections are 1 no connection, 1 battery and 1 Beep disable, none of which are necessary or normally used. The Rover traffic alert device (TAD) simply receives the RF data from the roadside beacons and sends it via the I-bus to the instrument cluster.Īs far as our unit is concerned there are just the 3 wires connected, the 0 volts, ignition +12 volts and the data bus to the cluster. Engineer from Pektron described TrafficMaster module working like this: TrafficMaster module is connected to IKE through dedicated "Nav-bus" line (single wire + 12V + GND), described here:Ĥ. On the IPK (instrument cluster), you can see TrafficMaster module displaying "boot" messageģ. Displaying custom messages on that display (i.e.