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Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Electrical >> Body Electrical >> Accessory USB Unit (AUU) And Central Electronic Module (CEM) Diagnostic Trouble Codes >> CEM-B102581: Transponder. Bus Signal / Message Failures. Invalid Serial Data Received (2007-2011) >> Diagnostic Trouble Code (DTC) Information CEM-B102581

Diagnostic Trouble Code (DTC) Information CEM-B102581

Condition 

When the remote key is inserted in the ignition, a switch closes. Start control module (SCU) reads out information from the key and sends it on to Central electronic module (CEM). Central electronic module (CEM) checks the received information from the remote key's ID-number.

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:

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: Locating Start Control Module (SCU)
GLL153174Courtesy of VOLVO CARS CORPORATION

Substitute Value 

Possible Source 

Fault symptom[s]