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Home >> Volvo >> 2009 >> C30 R-Design, Automatic >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Central Electronic Module (CEM) Diagnostic Trouble Codes - 6 Of 9 >> CEM-Dd1C: Communication With SCM Control Module Faulty Signal (2011-2013) >> Diagnostic Trouble Code (DTC) Information CEM-Dd1C
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Diagnostic Trouble Code (DTC) Information CEM-Dd1C

Condition 

When the alarm is activated the Central electronic module (CEM) regularly checks communication with the Siren control module (SCM).

The diagnostic trouble code is stored if the control module detects:

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

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.

Substitute Value 

Possible Source 

NOTE:

The Siren control module (SCM) must not be replaced if the siren's function is OK.

Fault symptom[s]