DSC Brake ABS lights plus....

[jdd]

From what I've read, there are two schools of thought on this.
The instructions from various people "in the know" is that you don't need to have anything recoded provided you don't disengage the brushes/feedback sensor when dismantling the servo motor, basically they say to keep the black plastic piece that houses the brushes and fedback sensor with the motor armature and housing.
To me this seems to be pointless because the motor will turn when the new gear is fitted and you're unlikely to get the gear back engaged in the transfer case with the motor armature in exactly the same position.
I suspect it's mentioned just to make things easier so you don't have to worry about getting the motor brushes back in place.

I didn't bother getting mine recalibrated after fitting the new gear and so far there has been no adverse effects, and it appears to functioning properly.
I suspect there must be some type of automatic recalibration process the servo motor goes through when you turn the engine on/off otherwise it would not be able cope with wear and tear within the transfer case clutch.