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Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 6 Of 13 >> CEM-5F11: Relay, Auxiliary Heater. Signal Too High. Permanent Fault (B5204T5; 2004) >> Signal too high. Permanent fault >> Activating components/functions >> Heater fan

Heater fan

Activating the heater fan.

A "buzzing" noise is heard from the heater fan when it is activated.