Hi all,
This is the end of a long journey.
Turns out the eDiff telemetry is provided by the CHCM ( body control module ) which uses Active Roll Control and the ABS module but without ARC the eDiff won’t function.
I’m either going to fit the ARC system to my 2016 RRs L494 GA HSE or try and control the rest Diff control module or eDiff directly.
ARC is offered standard on the HSE Dynamic and above RRs.
Regards.
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