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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 (2012) >> Diagnostic Trouble Code (DTC) Information CEM-B102581

Diagnostic Trouble Code (DTC) Information CEM-B102581

Condition 

When the start button is pressed the ignition antenna unit (IAU) reads out information from the key and sends it 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: Identifying Central Electronic Module (CEM)
GLL172895Courtesy of VOLVO CARS CORPORATION

Substitute Value 

Possible Source 

Fault symptom[s]