B221F
Audio Amplifier Internal
B221F is an OBD-II diagnostic trouble code meaning: Audio Amplifier Internal. Common causes: audio amplifier malfunction, wiring harness problems. Estimated repair cost: $56–333.
Symptoms
- No sound from the speaker system
- Distorted sound
- Intermittent sound loss
- Loud popping or clicking sounds from the speakers
Causes
- Audio amplifier malfunction
- Wiring Harness Problems
- Insufficient power to the amplifier
- Software failure of the multimedia system
- Short circuit in amplifier circuit
How to Fix
- Check the power and ground of the audio amplifier
- Inspect the wiring harness for damage
- Check the connections of the amplifier connectors
- Reset the error and check if it reappears
- If necessary, replace the audio amplifier
- Update multimedia system software
Related codes
FAQ
What does the B221F code mean?
B221F is an OBD-II diagnostic trouble code that indicates: Audio Amplifier Internal
What causes a B221F error code?
The most common causes of B221F include: Audio amplifier malfunction; Wiring Harness Problems; Insufficient power to the amplifier; Software failure of the multimedia system.
How do I fix a B221F diagnostic trouble code?
To fix B221F: Check the power and ground of the audio amplifier. Inspect the wiring harness for damage. Check the connections of the amplifier connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B221F?
Do not drive — repair immediately
How much does it cost to fix B221F?
The estimated repair cost for B221F is $56–333. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat