VOLVO
UEM-0063 - Sunroof motor. Signal too high
System
Upper Electronic Module (UEM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2001–2009), S80 (1999–2006), V70 (2000–2008), V70 XC / XC70 (2001–2007), XC90 (2003–)
What does this fault code mean?
The code is set when the sun roof control module registers an internal fault. It comes from the supply line for the sun roof's automatic movement having a short to voltage. The electric sun roof then does not work.
Possible causes
- The supply line for the automatic movement of the sun roof has a short to voltage
What you can do
- 1Try to run the sun roof to its end positions.
- 2Use a multimeter to check that the wire between the sun roof control module and the roof lamp has no contact with voltage.
- 3Check that the wiring from the sun roof switch to the roof lamp is not chafed or pinched.
- 4Check the connectors in the sun roof control module and in the roof lamp for corrosion and loose connections.
- 5If the fault remains, have a workshop replace the sun roof switch.
Symptoms you may notice1
- The electric sun roof does not work
General guidance for car owners. Diagnosis on the car can point to a different cause.