Diagnostic Trouble Code (DTC) Information CEM-U300051

Condition

The central electronic module (CEM) checks the internal components in the 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 on.

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: Central Electronic Module (CEM)

Courtesy of VOLVO CARS CORPORATION

Substitute Value

None.

Possible Source

Software error.

Fault symptom[s]

Engine fails to start