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Home >> Land Rover >> 1995 >> Discovery Automatic >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> System Tests >> Test D: Speedometer Does Not Operate

Test D: Speedometer Does Not Operate

Turn ignition on. Disconnect instrument cluster harness connector (C221). See WIRING DIAGRAMS  . Place gear selector in Neutral, and raise vehicle. Connect voltmeter positive lead to terminal No. 2 (Black/Red wire), and connect negative lead to ground. While turning drive wheel by hand, voltage should fluctuate. If voltage fluctuates, replace speedometer. If voltage does not fluctuate, repair Black/Red wire, or replace vehicle speed sensor.