OBD-II code · Powertrain (generic, extended)
P26EF Engine Sound Control B Circuit Performance
The sound generator B circuit responds but the resulting acoustic feedback is not as expected.
Is it safe to drive with P26EF?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySpeaker cone damaged or coil shorted
- PossibleFeedback microphone drifts
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–3.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Sound Amplifier B, Speaker, Feedback Microphone
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.