XJ-12 (X300) V12-6.0L (1995)
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Compressor Speed Sensor: Description and Operation
Compressor Lock Signal - 12cyl. Vehicles Only
This signal provides the Air Conditioning Control Module (A/CCM) with compressor rotation speed. This is then compared with engine rotation speed.
If the ratio of the compressor speed against engine speed drops below the A/CCM limits, indicating compressor/belt slippage, the compressor clutch is
disengaged.
When compressor clutch disengaging commences the A/C LED on the control panel will flash once per second.
