OBD Guide
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B221E

Radio Unit Internal

B221E is an OBD-II diagnostic trouble code meaning: Radio Unit Internal. Common causes: software glitch, damage to chips. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • No sound from the audio system
  • Navigation doesn't work
  • Malfunctions of the multimedia system
  • Screen freezes

Causes

  • Software glitch
  • Damage to chips
  • Eating problems
  • Mechanical damage

How to Fix

  1. Check the connections and wiring harness of the radio unit
  2. Reboot the system (if possible)
  3. Update software
  4. Replacing the radio unit (if necessary)

Related codes

B221FB2220

FAQ

What does the B221E code mean?

B221E is an OBD-II diagnostic trouble code that indicates: Radio Unit Internal

What causes a B221E error code?

The most common causes of B221E include: Software glitch; Damage to chips; Eating problems; Mechanical damage.

How do I fix a B221E diagnostic trouble code?

To fix B221E: Check the connections and wiring harness of the radio unit. Reboot the system (if possible). Update software. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B221E?

Limited driving only, diagnose soon

How much does it cost to fix B221E?

The estimated repair cost for B221E is $56–222. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat