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Home >> Volvo >> 2009 >> V50 Base, 2.4 39 >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Global Positioning System (GPS), Phone Module (PHM), Subwoofer Module (Sub) And Traffic Message Channel Module (TMC) Diagnostic Trouble Codes >> PHM-0063: Illumination Buttons Signal Too High/Signal Missing (2009-2011) >> Fault-Tracing >> Checking The Wiring >> Checking The Component

Checking The Component

Change the switches for Volvo On Call. Check that the lighting in the switches works by altering the lighting intensity on the buttons.

Other information 

Fig 1: Identifying Volvo On Call Buttons
GLL128668Courtesy of VOLVO CARS CORPORATION

Does the lighting work?