This bulletin applies to Honda Fit as well as other models. The OPDS sensors in the front passenger seat-back pad are very sensitive and can set SRS DTC 15-3 (faulty OPDS sensor) or 86-11 (faulty OPDS seat-back sensor) if they are exposed to even small amounts of electronic interference.
Some electrical devices that plug into the accessory power socket (especially those using a power inverter/converter) can interfere with the seat-back sensors and cause a false DTC. Even fluorescent lights can cause this when placed near these sensors.
Find out if the customer is using any plug-in electrical devices or fluorescent lights near the front passenger seat.
If this is the case, clear the DTC and advise the customer not to use plug-in electrical devices or fluorescent lights near the front passenger seat-back.