VOLVO
PSR-004B - Hall sensor backrest. Abnormal current
System
Powertrain (Engine & Gearbox)
Volvo models this fault code applies to
Applies to the following models:
3 modelsC30 (2007–2013), C30 Electric (2011–2013), C70 (2006–2013)
Show models by year and engine (3)
What does this fault code mean?
The right power seat control module (PSR) registers a faulty signal from the backrest hall sensor. Although the code is named abnormal current, it applies to the signal from the sensor, which may be damaged.
Possible causes
- Damaged hall sensor in the backrest
What you can do
- 1Check that the seat fuses are intact; their locations are in the owner's manual or on the fuse chart
- 2Check that the connectors to the hall sensor are firmly fitted and not oxidised
- 3If the wiring is intact, have a workshop check the hall sensor and replace it if faulty
- 4Clear the code after the work and test the backrest forwards and backwards
Symptoms you may notice1
- Reduced seat function
General guidance for car owners. Diagnosis on the car can point to a different cause.