B0337Passenger Seat Heater Circuit
- Generic OBD-II code · Body
- How the car detects it
- There is no public trace of B0337 in J2012 lists or factory data; its subject repeats B0342. It covers the passenger seat heating mat and its feed. Because that seat is often empty, a fault may go unnoticed for a long time. Saab's 9-3 climate module reports B2433 01 when the right heater is shorted to battery voltage and B2434 06 for an open or grounded circuit; GM's 2011 Saab 9-5 uses B2430 0B/0D/0E. Chrysler's bulletin 08-049-14 covered both front seats (B1096 on the right). US6252208B1 shows how a control circuit combines heating current and an NTC seat sensor; a broken element or feed simply leaves the passenger seat cold.
- What you may notice
- Passenger seat heating does not warm up
- Heating switches off shortly after activation
- Likely causes
- LikelyHeating wire in the passenger cushion or backrest broken
- PossibleConnector under the passenger seat kicked loose or corroded
- RareDamage during work on the occupant detection mat in the same cushion
- RareHeater output in the controlling 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.