Range Rover County LWB (LH) V8-4.2L (1993)
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Coolant Level Indicator Lamp: Description and Operation
Low Coolant Level Warning Light
The Instrument Cluster (Z142) receives battery voltage through the Low Coolant Level Switch (X144) with the Ignition Switch (X134) in position II and
the engine coolant level OK. If the engine coolant level is low, the Low Coolant Level Switch (X144) opens. removing voltage from the Instrument
Cluster. The Instrument Cluster then lights the low coolant level warning light. The Warning Lamps Check Unit (Z161) applies ground to the warning
light momentarily as a bulb check when the Ignition Switch (X134) is moved to position II.
