VOLVO
DEM-P064F05 - Unauthorized Software/Calibration Detected. General Failure Information. System Programming Failures
System
Differential Electronic Module (DEM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–), XC90 (2003–)
Show models by year and engine (12)
- Volvo S60 (2011–)2011–2015
- Volvo S80 (2007–)2009–2015
- Volvo V40 Cross Country (2013–)2013–2015
- Volvo V60 (2011–)2011–2015
- Volvo V60 Cross Country (2015–)2015
- Volvo V70 (2008–)2009–2015
- Volvo XC60 (2009–)2009–2015
- Volvo XC70 (2008–)2009–2015
- Volvo XC90 (2003–)2009–2010Engine B6324S, B8444S only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2011Engine B6324S5, B8444S only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2012Engine B6324S5 only · Transmission TF-80SC AWD only
- Volvo XC90 (2003–)2013–2014Engine B6324S5, D5244T18 only · Transmission TF-80SC AWD only
What does this fault code mean?
The module checks its configuration ID against the signal configuration that the CEM transmits. When they do not match, it is probably running software that does not suit this car. The fault can also be caused by breaks or short circuits on the CAN network. The four-wheel drive is disengaged, and the remedy is to load the correct software.
Possible causes
- Incorrect software in the four-wheel drive control module (DEM)
What you can do
- 1Read the codes in all control modules and note whether any other communication code is stored
- 2If the four-wheel drive control module has been replaced, tell the workshop that it may need the right software for this particular car
- 3Check that the CAN wires and connectors are intact and clean, and that nothing has chafed
- 4Have a workshop load the right software into the four-wheel drive control module and erase the code afterwards
Symptoms you may notice2
- Four-wheel drive and all-wheel drive do not work
- Warning symbol and message in the display
What the fault can affect1
- The four-wheel drive is disengaged
General guidance for car owners. Diagnosis on the car can point to a different cause.