Range Rover County LWB (LH) V8-4.2L (1993)
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Speedometer: Description and Operation
The Vehicle Speed Sensor (X190) sends a signal to the speedometer in the form of voltage pulses. The pulses are filtered by the Vehicle Speed Sensor
Buffer (Z1 60) (if equipped). The voltage alternates between battery voltage and 0 volts 6 times per wheel revolution. If equipped. the speed sensor
signal is also sent to the Seatbelt And Speed Warning Unit (Z156). Cruise Control ECU (Z121). Engine Control Module (Z132). Memory Seat ECU
(Z146). Air Suspension ECU (Z165) ad the Emissions Maintenance Reminder Unit (Z126).
