B0610Mirror Heater Circuit
- Generic OBD-II code · Body
- How the car detects it
- Public J2012 lists, OEM manuals and NHTSA bulletins all lack B0610; its use cannot be verified. The title describes the heating element behind the outside mirror glass. In the 2003–2012 Saab 9-3 each door module watches this load on its own: if the heater draws too much current when switched on, it stores B1640 02 and tries again only in the next drive cycle. Magna's US9481304B2 gives a typical pad of roughly 23 W (1.8 A at 13 V), often a PTC element, whose power is cut back while the car stands still. According to TI, a mirror module has to supervise both the folding motor and the heater load for faults. A dead heater only affects demisting; adjustment faults have their own codes (B0600, B0601).
- What you may notice
- Outside mirror stays fogged or iced while the rear window clears
- Mirror glass does not warm up when the heating is switched on
- Code returns after every restart
- Likely causes
- LikelyHeating pad behind the mirror glass broken or shorted
- PossibleCorroded plug at the mirror glass or in the mirror base
- PossibleWire chafed in the door hinge passage
- RareHeater output of the door or body control module faulty
- Repair
- Easy · Often possible to do yourself.Typical cost: €40 – €300
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.