Diagnostic trouble code (DTC) information CEM-7A0C

Condition 

Fig 1: Identifying Enter Button

Courtesy of VOLVO CARS OF NORTH AMERICA.

The central electronic module (CEM) checks the signal from the enter button.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the enter button has been active for more than 1 minute.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

• None.

Possible Source 

• The Enter button has jammed in the pressed in position
• Damaged enter button.

Fault symptom[s] 

• The RTI buttons on the steering wheel do not function
• The navigation buttons on the steering wheel do not function.