Expedition 4WD V8-4.6L SOHC VIN W (1999)
Solar Sensor: Description and Operation
The A/C sunload sensor:
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is located on the top of the instrument panel.
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contains a photovoltaic diode that is sensitive to light.
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has some unspecified resistance across the terminals depending upon the amount of light reaching the photovoltaic diode; therefore the only test
that can be performed is for an internal short circuit.
