Diagnostic trouble code (DTC) information CEM-8F1A

Condition 

The central electronic module (CEM) checks the signal from the right-hand Xenon lamp.

The diagnostic trouble code (DTC) is stored if the central electronic module (CEM) registers that the signal from the right-hand Xenon bulb is too low.

The diagnostic trouble code (DTC) can be diagnosed at ignition switch position II.

Substitute Value 

• Shortest headlamp range will be used.

Possible Source 

• Short-circuit to ground in the signal cable
• The actuator motor in the xenon lamp housing has jammed
• Damaged actuator motor in the xenon lamp housing.

Fault symptom[s] 

• The low beam is constantly lit
• The high beam is constantly lit
• The road surface is not illuminated.
• Headlights/Headlight aim is off