VOLVO
DDM-B12C502 - Front Window Lifter Motor Up Relay. General Failure Information. General signal failure
System
Driver Door Module (DDM)
Volvo models this fault code applies to
Applies to the following models:
5 modelsS60 (2011–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–)
What does this fault code mean?
The driver and passenger door modules control the front door window lift through a relay. The fault is stored when the relay for raising the window is active although it should be off. The causes are a relay stuck in the active position, or that the window has been operated with a diagnostic tool at a workshop.
Possible causes
- The relay is stuck in the active position
- The window lift has been operated with a diagnostic tool
What you can do
- 1Read and clear the code, and check whether it returns
- 2If the window was recently operated with a diagnostic tool at a workshop, the code may be a trace of that and can then be cleared
- 3Check that the fuses are intact
- 4Test the window up and down with the switch and check whether it moves without anyone operating it
- 5If the fault remains, have a workshop check the control module software and reload it if it is damaged
- 6If the control module is damaged, have a workshop replace it and confirm that the fault is cleared
Symptoms you may notice1
- The window lift does not work, works only partly or works incorrectly
What the fault can affect1
- The control module activates the relay for lowering the window
General guidance for car owners. Diagnosis on the car can point to a different cause.