VOLVO
PSM-B1B9724 - Seat Slide Backward Switch. General Signal Failures. Signal stuck high
System
Power Seat Module (PSM)
Volvo models this fault code applies to
Applies to the following models:
9 modelsS60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V60 Cross Country (2015–), V70 (2008–), XC60 (2009–), XC70 (2008–)
What does this fault code mean?
The fault code means the control M1-, which moves the seat backward in the front-rear direction, has been activated for too long. Front-rear adjustment then does not work, and the seat functions are reduced.
Possible causes
- Control M1- has jammed in the pressed position
- Damaged control panel
What you can do
- 1Check that control M1- has not jammed in the pressed position and that it springs back when released.
- 2Remove anything, such as dirt, that may hold button M1- down, and make sure it moves freely.
- 3Clear the fault code and see whether it comes back when the seat is adjusted as usual.
- 4If the fault remains, or if the button is damaged, have a workshop replace the control panel.
Symptoms you may notice3
- Reduced seat function
- Lengthwise adjustment does not work
- Electric seat adjustment and folding of the front seat do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.