Diagnostic trouble code (DTC) information CEM-7A06

Condition 

Fig 1: Identifying NO Button

Courtesy of VOLVO CARS OF NORTH AMERICA.

The central electronic module (CEM) checks the signal from the NO button.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the NO 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 NO button is jammed in the pressed in position
• Damaged NO button.

Fault symptom[s] 

• The phone buttons on the steering wheel do not work.