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Home >> Volvo >> 2007 >> S60 Base, AWD >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM), Rear Electronic Module (Rem), Upper Electronics Module (UEM) - Diagnostic Trouble Codes - 13 Of 13 >> UEM-0091: Rear View Mirror, Display. Signal Too High (2003-2004) >> Diagnostic Trouble Code (DTC) Information UEM-0091
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Diagnostic Trouble Code (DTC) Information UEM-0091

Condition 

The upper electronic module (UEM) checks the power supply to the LEDs in the display in the rear view mirror. The five LEDs are supplied with power via the same cable and are internally mounted in the rear view mirror.

Diagnostic trouble code (DTC) UEM-0091 is stored in the control module if the upper electronic module (UEM) registers too high a signal for the power supply to the LEDs in the display in the rear view mirror.

Diagnostic trouble code (DTC) UEM-0091 can be diagnosed when the LEDs in the rear view mirror are not supplied with power, i. e. when the LEDs in the display do not satisfy conditions for lighting.

Substitute Value 

Possible Source 

Fault symptom[s] 

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