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Home >> Volvo >> 2009 >> V70 >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Forward Sensing Module (FSM) Diagnostic Trouble Codes >> FSM-U300066: Control Module. Algorithm Based Failures. Signal Has Too Many Transitions / Events (2008-2010) >> Diagnostic Trouble Code (DTC) Information FSM-U300066
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Diagnostic Trouble Code (DTC) Information FSM-U300066

Condition 

The Forward Sensing Module (FSM) checks the entire system including other control modules.

The diagnostic trouble code (DTC) is stored if the control module detects that:

The control module's test for the diagnostic trouble code (DTC) starts in the event of:

Fig 1: Identifying Forward Sensing Module (FSM)
GLL152724Courtesy of VOLVO CARS CORPORATION

Substitute Value 

Possible Source 

Fault symptom[s]