A049

Wiring Diagram:

Code A049 is designed to disengage the A/C compressor clutch in the event that high side refrigerant temperature (ACP data parameter AD27) exceeds 93°C (199°F) calibrated. The A/C compressor will re-engage and the code will be stored as a history code when the high side temperature falls below 87°C calibrated. If Code A049 has set, possible causes for excessive high A/C head pressure, including cooling fan operation, must be checked. For a refrigerant system performance test, refer to Performance Test.

While the A049 is current, the Instrument Panel Cluster (IPC) will display 'A/C OVERHEATED - A/C COMPRESSOR OFF' warning.