Diagnostic Trouble Code (DTC) Information CEM-9F32

Condition 

Fig 1: Identifying Rheostat

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the input signal from the rheostat is too low.

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

Substitute Value 

• None.

Possible Source 

• Short-circuit to supply voltage in the rheostat
• Damaged light switch.
• Blown fuse.

Fault symptom[s] 

• The instrument lighting does not operate.