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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-Dd11: Communication With SCU Control Module. Signal Missing (2007-2013) >> Diagnostic Trouble Code (DTC) Information CEM-Dd11
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Diagnostic Trouble Code (DTC) Information CEM-Dd11

Condition 

Fig 1: Identifying Start Control Module (SCU)
GLL117645Courtesy of VOLVO CARS CORPORATION

HINT: The diagnostic trouble codes (DTCs) are included in a larger fault-tracing for the symptom Starter motor not running. 

When the ignition key is inserted in the ignition switch, the key in switch is closed. The central electronic module (CEM) then tries to check the identity of the ignition key through a message to the start control module (SCU) to activate the antenna around the ignition switch. The control modules form part of the start inhibiting system.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM), when attempting communication, does not receive an answer from the start control module (SCU).

Substitute Value 

Possible Source 

Fault symptom[s]