OBD Guide
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B146A

Channel 3 Audio Speaker Output Circuit Performance

B146A is an OBD-II diagnostic trouble code meaning: Channel 3 Audio Speaker Output Circuit Performance. Common causes: open or short circuit in the speaker circuit, speaker malfunction. Estimated repair cost: $33–111.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • No sound from channel 3 speaker
  • Sound distortion
  • Clicking or crackling noises in speakers

Causes

  • Open or short circuit in the speaker circuit
  • Speaker malfunction
  • Audio amplifier problems
  • Wiring harness damage

How to Fix

  1. Check the continuity of the channel 3 speaker circuit
  2. Check the speaker status
  3. Diagnose an audio amplifier
  4. Replace damaged components

Related codes

B146BB1469

FAQ

What does the B146A code mean?

B146A is an OBD-II diagnostic trouble code that indicates: Channel 3 Audio Speaker Output Circuit Performance

What causes a B146A error code?

The most common causes of B146A include: Open or short circuit in the speaker circuit; Speaker malfunction; Audio amplifier problems; Wiring harness damage.

How do I fix a B146A diagnostic trouble code?

To fix B146A: Check the continuity of the channel 3 speaker circuit. Check the speaker status. Diagnose an audio amplifier. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B146A?

Yes, but get it checked soon

How much does it cost to fix B146A?

The estimated repair cost for B146A is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat