U0563 code meaning
Invalid Data Received From Audio Amplifier B
What U0563 means
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.
U0563 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0563
- Some speakers or the subwoofer silent while others play
- Volume or sound settings react incorrectly
Common causes of U0563
- PossibleAmplifier B software not matching the head unit software level
- PossibleAftermarket amplifier or audio interface on the vehicle bus sending non-conforming data
- Less likelyAudio amplifier B internally faulty or overheated
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Audio amplifier b
What each part of U0563 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 63 | The exact fault in that area. |
What to do next
- Note U0563 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0563
What does U0563 mean?
U0563 means "Invalid Data Received From Audio Amplifier B". Premium sound systems often use an external amplifier away from the head unit, and large installations can need a second one, audio amplifier B. It is a generic code, so it means the same on every make.
Is it safe to drive with U0563?
U0563 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0563 fail an emissions test?
U0563 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0563 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2 hours of work. This is a job for a workshop.
Will U0563 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.