500SEC (140.070) V8-5.0L (119.970) (1993)
Auxiliary Fan Pre-Resistors (R15, R15/1)
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The ACC pushbutton control unit (N22) receives an input from the sensor (B12) to provide low pressure - high pressure A/C compressor cut-out,
and to control the 3 stages of the auxiliary fans.
Auxiliary Fan Switch-points:
Chart - Auxiliary Fan Switch-points
Coolant Temperature Sensor (B10/8)
In the 1st stage, the auxiliary fans:
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Do not engage at ambient temperatures < +5°C,
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Engage at ambient temperatures > + 10 °C.