Quote:
Originally Posted by SD1too
OK, so considering just the petrol models for the moment, is the outside temperature data sent by the IPK via the K bus to the BCU and ATC (HEVAC) ECUs derived from the temperature sensor in the bumper?
Sorry to be persistent about this but I think it's important to be absolutely clear.
Simon
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For all models, the IPK broadcasts the outside air temp (along with other data) so that anything on the K-Bus can read it and use it if required.
So yes the BCU does receive it, however the ATC is NOT on the K-bus network it has its own datalink directly to/from the BCU.