OBD Guide
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B1A04

Speaker 4 General Electric Failure

B1A04 is an OBD-II diagnostic trouble code meaning: Speaker 4 General Electric Failure. Common causes: broken wires, speaker malfunction. Estimated repair cost: $56–167.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • No sound from speaker 4
  • Sound distortion
  • Intermittent sound loss

Causes

  • Broken wires
  • Speaker malfunction
  • Poor contact in connectors
  • Problems with the head unit

How to Fix

  1. Check wiring integrity
  2. Check the condition of the connectors
  3. Test the speaker
  4. Update head unit software

Related codes

B1A03B1A05B1A06

FAQ

What does the B1A04 code mean?

B1A04 is an OBD-II diagnostic trouble code that indicates: Speaker 4 General Electric Failure

What causes a B1A04 error code?

The most common causes of B1A04 include: Broken wires; Speaker malfunction; Poor contact in connectors; Problems with the head unit.

How do I fix a B1A04 diagnostic trouble code?

To fix B1A04: Check wiring integrity. Check the condition of the connectors. Test the speaker. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1A04?

Do not drive — repair immediately

How much does it cost to fix B1A04?

The estimated repair cost for B1A04 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat