Diagnostic Trouble Code (DTC) Information FSM-U300041

Condition

Forward Sensing Module (FSM) checks internal components in control module.

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

Internal components do not work.

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

Ignition switch position II.

NOTE:

The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.

Fig 1: Identifying Forward Sensing Module (FSM)

Courtesy of VOLVO CARS CORPORATION

Substitute Value

None.

Possible Source

Faulty software.
Damaged Forward Sensing Module (FSM).

Fault symptom[s]

Brake pedal/Excessive "brake pedal effort" required
Cruise control/Does not engage
Warning lights and chimes/Front monitoring/Active safety indication/no indication
Warning lights and chimes/Bulb failure indication/no indication
Text window and warning symbol/Text message