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Home >> Saturn >> 2000 >> SC2 Automatic, MP6 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Manual A/C-Heater Systems >> Description & Operation >> Compressor Clutch Pcm Control Logic >> Compressor Over-Speed Protection (COSP)

Compressor Over-Speed Protection (COSP)

PCM will de-energize A/C control relay when engine speed is greater than 6375 RPM. PCM will energize A/C control relay when engine speed is less than 4500 RPM for 2 seconds.

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