U0563Invalid Data Received From Audio Amplifier B
- Generic OBD-II code · Network
- How the car detects it
- Premium sound systems often use an external amplifier away from the head unit, and large installations can need a second one, audio amplifier B. Such amplifiers are network nodes: the head unit sends volume and other commands over CAN instead of an analog level, and the amplifier reports its status back, as a patent on modular vehicle amplifiers explains. Jeep shows the reverse direction on the 2023 Grand Cherokee and Wagoneer: the amplifier module logged U0485 for implausible data from the Uconnect 5 radio, cleared by radio software T25L (08-046-23). U0563 is the same kind of fault with amplifier B as sender; U0262 means it went silent and U0487 concerns amplifier A. No manufacturer documents U0563. Some speakers may drop out or volume may jump.
- What you may notice
- Some speakers or the subwoofer silent while others play
- Volume or sound settings react incorrectly
- Likely causes
- PossibleAmplifier B software not matching the head unit software level
- PossibleAftermarket amplifier or audio interface on the vehicle bus sending non-conforming data
- RareAudio amplifier B internally faulty or overheated
- Repair
- Medium · Usually a job for a workshop.Typical cost: €0 – €900
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.