ABS sensor
 

How can be made a measurement for the ABS sensor resistance,
should be remove? or measurement can be made only by the plug?
According to manual a sensor must have 950 - 1100 ohms, but I dont know how to measure this resistance

Unlug inside the engine compartment. Attach leads from your digital multimeter ($5 or more at Harbor Freight and others). Set for "ohms". If you short the leads together, should read "zero" ohms. Apart should read infinite or open loop. A digital meter is easier to use than the older pointer style, because the ohms scale was not linear, all squashed up at one end of the scale, parallax correction viewing errors, etc.

Pix of an individual sensor wire. Easier to get at than the SLABS unit where all the wires end up. See RAVE circuits diagram for the connector numbers, then look up conector in the troubleshooting guide. Locations can vary by LHD or RHD. Pix usually of a disgustingly clean Rover, kept in a jar by the Klingon engineers.

The way I did it yesterday; disconnected the frontmost plug to the Wabco module under the glove box in the passenger compartment, not the engine compartment, measured the resistance on 2 green pairs and 2 white/brown pairs, got 1000 Ohms in all.

Connected my portable oscilloscope to those pairs, connector plugged back in to the Wabco unit, went for a drive and saw healthy sine waves of about 2.8 Vpp.

This eliminated the wheel sensors for four amigos troubleshooting.

Tested resistance between the outer pins of middle row of the unplugged connector at the Wabco modulator in the engine compartment; got 3000 Ohms, which is the correct resistance value.