B0335Driver Seat Heater Circuit
- Generic OBD-II code · Body
- How the car detects it
- B0335 is unsupported by J2012 lists and by service information; its topic duplicates B0341. The circuit is the heating mat in the driver cushion and backrest plus its supply. Real codes elsewhere: Saab's 9-3 climate module stores B2428 01 when the left heater is shorted to battery voltage and B2429 06 for an open left heater; GM's 2011 Saab 9-5 measures current and voltage every 10 s and sets B2425 0B/0D/0E for high current, high or low resistance. Chrysler bulletin 08-049-14 (Wrangler 2011–12) replaced elements whose resistance fell out of range below −12 °C (B1092). Patent US5229579A cuts power on a detected short or open to prevent overheating.
- What you may notice
- Driver seat stays cold although heating is switched on
- Seat heating indicator flashes or goes out after a few seconds
- Only the backrest or only the cushion warms up
- Likely causes
- LikelyHeating wire in the driver cushion broken by repeated flexing
- PossibleSeat heater connector under the seat loose or burnt
- PossibleElement or feed wire shorted to the seat frame
- RareOutput stage of the seat heating or climate module defective
- Repair
- Medium · Usually a job for a workshop.Typical cost: €80 – €700
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.