VOLVO
PSM-B1B9924 - Seat Tilt Down 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 power seat control module (PSM) has detected that the seat tilt down control has been held pressed for longer than allowed, which sets the code. The control may have jammed in the pressed position. The seat may then stop adjusting as normal.
Possible causes
- The seat tilt down control has jammed in the pressed position
- Damaged control panel
What you can do
- 1Check that the seat fuses are intact; their locations are in the owner's manual or on the fuse chart
- 2Press the seat tilt down control in and release it; it should spring back freely. If it sticks or stays down, the control panel is the fault
- 3Test the seat with the control and check whether the seat moves down while the switch is held and stops when it is released
- 4If you have diagnostic equipment, read the control's status in live data and check that it returns to not-activated when the switch is released
- 5Check that the control panel is firmly fitted and not damaged, wet or dirty around the buttons
- 6Clear the code after the checks and road test the car. If it returns and the control still sticks, replace the control panel
Symptoms you may notice3
- Reduced seat function
- Seat height adjustment does not work
- Front seat, power seat adjustment and folding do not work
General guidance for car owners. Diagnosis on the car can point to a different cause.