Diagnostic Trouble Code (DTC) Information CEM-8F37

Condition 

Fig 1: Identifying Left-Hand Turn Signal Lamp

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the signal in the driver circuit for the left-hand turn signal lamp is too high or that there is no signal.

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 signal cable
• Open-circuit in the signal cable.

Fault symptom[s] 

• The turn signal lamps do not work.