Diagnostic Trouble Code (DTC) Information CEM-8D03 (2009, 2010, 2011)

Condition 

Fig 1: Identifying High Level Stop Lamps

Courtesy of VOLVO CARS OF NORTH AMERICA.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the signal to the high level stop lamp is too high.

The DTC can be diagnosed with the key removed, in ignition position 0, I or II.

Substitute Value 

• None.

Possible Source 

• Short-circuit to battery voltage in the signal cable to the high level stop lamp.

Fault symptom[s] 

• The stop lamp lights constantly.