I have a fault showing up in diagnostics which says Company Comfort Databus is in single wire.
I understand that this is a wiring problem somewhere in the data bus, but I can't find an explanation of what the "Company Comfort Databus" actually is.
Is it just a fancy term for the CAN bus or something more specific?
Cheers
Dave R
Cross posting this because I don't know how many people look at uk.rec.cars.maintenance.
I will say that Company Comfort sounds like the provision of sex workers, but can't be in this case.
Cheers
Dave R
Example.
There are some diagrams here of CAN bus, on the right side of the page, down a bit.
- engine control unit
-ABS control unit
-ESP control unit
-Transmission control unit
-Airbag control unit
- Combination meter
The CAN Comfort/Infotainment Data Bus (100 Kbit/s) Control Unit has:
- Fully automatic air conditioning / air conditioning control unit
-Door control unit
- Comfort Control Unit
- radio and navigation display unit control unit
That implies two separate buses. If the air conditioning control shorts out, the Airbag still works (in the sense that when the car probes the airbag, it finds it "ready to fire").
We use our imagination on automobiles, because we don't expect documentation.
Paul
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Thanks for the usual comprehensive explanation.
The main very helpful point is that any fault showing on the Comfort Bus is unlikely to be associated with the fuel rail pressure, which helps a lot.
It is also unlikely to be mission critical.
Cheers
Dave R
You say that now, but wait until next winter!
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