Quote:
Originally Posted by Simon.h
Hi, Well going by wiring details its the relay unit and we all know the diesel is a 'fly by wire system' so its not needed.
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It's an ECU, not just a relay Simon. Top two wires connect it to the CAN bus.
I'd guess it is taking the vehicle speed information on the CAN bus and signalling the ECM to maintain the desired speed.
How are you going to do this without it?
