Diagnostic Trouble Code (DTC) Information CEM-6C54

Condition 

Fig 1: Identifying Engine Control Module (ECM)

Courtesy of VOLVO CARS CORPORATION

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

The central electronic module (CEM) checks the functions in the start inhibiting system. The start inhibiting system includes a number of control modules. When attempting to start, the central electronic module (CEM) checks the included components via encrypted communication.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) receives an incorrect answer from the engine control module (ECM).

Substitute Value 

• None.

Possible Source 

• Incorrect programming of the engine control module (ECM)
• Incorrect programming of the central electronic module (CEM).

Fault symptom[s] 

• The starter motor does not turn