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.
2009 Volvo S60 Base, AWDFACTORY OEM SERVICE PROCEDURE
Differential Electronic Module (DEM) DTCS
DIFFERENTIAL ELECTRONIC MODULE (DEM) DTC INDEX
| Volvo Code | Description |
|---|---|
| DEM-0001 | Temperature sensor. Faulty signal (AW50/51 AWD) |
| DEM-0002 | Pressure sensor. Faulty signal (AW50/51 AWD) |
| DEM-0003 | System voltage. Faulty voltage (AW50/51 AWD) |
| DEM-0005 | Control valve. Internal fault (AW50/51 AWD) |
| DEM-0007 | Hydraulic pressure. Incorrect value (AW50/51 AWD) |
| DEM 0006 | Feed pump. Faulty signal (AW50/51 AWD) |
| DEM-0008 | Control module, calibration fault. Internal fault (AW50/51 AWD) |
| DEM-0009 | Control module Analog/Digital converter. Internal fault (AW50/51 AWD) |
| DEM-000A | Power supply. Faulty voltage (AW50/51 AWD) |
| DEM-000B | Oil pressure. Incorrect value (AW50/51 AWD) |
| DEM-000C | Control module. Faulty hardware (AW50/51 AWD) |
| DEM-E000 | Control module communication. Faulty communication (AW50/51 AWD) |
| DEM-E003 | Configuration fault. Faulty configuration (AW50/51 AWD) |
| DEM-XXXX | Unknown diagnostic trouble code (DTC) for the current control module version (AW50/51 AWD) |
Factory Service Tools
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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.