jaguar Workshop Repair Guides

Jaguar Workshop Service and Repair Manuals

Compressor Lock Signal - 12cyl. Vehicles Only|Page 2798 > < Camshaft & Valve Clearance - Revisions|Page 2792
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A/C Signal: 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 Air Conditioning (A/C) Light Emitting Diode (LED) on the control panel will flash once per
second.

Compressor Lock Signal - 12cyl. Vehicles Only|Page 2798 > < Camshaft & Valve Clearance - Revisions|Page 2792