B0341 code meaning
HVAC Heated Seat Driver Circuit
What B0341 means
B0341 is not backed by any known J2012 list or carmaker text, and it covers the same ground as B0335. The HVAC prefix fits cars whose climate control module also runs the seat heaters. Saab's 9-3 is one: its climate module drives the left seat heater and reads a seat temperature sensor; B1927 02 (input below 0.2 V) switches the left heater off, and B2429 06 reports an open element. US6252208B1 shows such a set-up, where an NTC sensor in the seat forms a voltage divider whose tap the controller reads to regulate heating current. The mats are the same as with a separate seat heating module; what differs is the module that owns the output and sets the code.
B0341 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium, DIY possible
- Typical labor1 to 4 hours
- Clears after repairWhen cleared with a scanner
Symptoms of B0341
- Driver seat heating dead while climate control works
- Heating starts but stops after a short time
Common causes of B0341
- Most likelyDriver heating mat open circuit
- PossibleSeat temperature sensor shorted or open so heating is blocked
- PossibleLong harness from climate module to seat damaged at the seat rail
- Less likelySeat heater output in the climate control module failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Driver seat heaterHeated seat module
What each part of B0341 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). |
| 41 | The exact fault in that area. |
What to do next
- Note B0341 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 B0341
What does B0341 mean?
B0341 means "HVAC Heated Seat Driver Circuit". B0341 is not backed by any known J2012 list or carmaker text, and it covers the same ground as B0335. It is a generic code, so it means the same on every make.
Is it safe to drive with B0341?
B0341 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will B0341 fail an emissions test?
B0341 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 B0341 to fix?
Difficulty: medium. A typical repair takes 1 to 4 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will B0341 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.