B0310 code meaning
Driver Seat Position Sensor Circuit
What B0310 means
For B0310 there is neither a J2012 list entry nor a known manufacturer description. The title refers to the position feedback of the power driver seat. GM's 2011 Saab 9-5 uses Hall sensors built into each seat motor; the memory module feeds them 12 V and counts their pulses (0–65,535) to know where the seat is; its codes are B1825, B2355, B2365 and B2375. Saab's 9-3 files the fore-aft sensor as B2375: 04 above 0.5 V for an open line, 29 when no pulses arrive. Then memory recall stops and end-stop learning is lost. US5751129A names potentiometers, Hall sensors and commutator pulses as the usual principles. Manual seat movement normally still works.
B0310 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor0.5 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0310
- Memory buttons do not recall stored seat positions
- Seat moves jerkily or stops short of its end position
- Easy-entry function does not move the seat back
Common causes of B0310
- Most likelyHall sensor inside a seat motor failed
- Most likelyWiring under the seat pinched by the rails or pulled off
- PossibleSensor supply or ground circuit open or shorted
- Less likelySeat memory module input fault
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Seat position sensorSeat control moduleSeat harness
What each part of B0310 means
| B | Body system: airbags, seat belts, power seats, lights and climate control. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 10 | The exact fault in that area. |
What to do next
- Note B0310 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about B0310
What does B0310 mean?
B0310 means "Driver Seat Position Sensor Circuit". For B0310 there is neither a J2012 list entry nor a known manufacturer description. It is a generic code, so it means the same on every make.
Is it safe to drive with B0310?
B0310 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0310 fail an emissions test?
B0310 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is B0310 to fix?
Difficulty: medium. A typical repair takes 0.5 to 2.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0310 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.