Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSVOLVO2007XC90 AWD V8-4.4L VIN 85 B8444SREPAIR AND DIAGNOSISA L L DIAGNOSTIC TROUBLE CODES ( DTC )TESTING AND INSPECTIONMANUFACTURER CODE CHARTSCEM CODES (CENTRAL ELECTRONIC MODULE)CEM-8F1CDIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
2007 Volvo XC90 AWD V8-4.4L VIN 85 B8444S
Diagnostic Trouble Code (DTC) Information
2007 Volvo XC90 AWD V8-4.4L VIN 85 B8444SSECTION Diagnostic Trouble Code (DTC) Information
Diagnostic trouble code (DTC) information CEM-8F1C
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 high.
The diagnostic trouble code (DTC) can be detected when the ignition has been on for at least 10 seconds and the battery voltage is above 10.5 V.
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 supply voltage in the signal cable
- Open-circuit in the signal cable
- The actuator motor in the xenon lamp housing has jammed
- Damaged actuator motor in the xenon lamp housing.
- Headlights/Headlight aim is off
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
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.