OBD Guide
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B147C

Channel 6 Audio Speaker Output Circuit Open

B147C is an OBD-II diagnostic trouble code meaning: Channel 6 Audio Speaker Output Circuit Open. Common causes: broken or damaged wiring harness, audio speaker malfunction. Estimated repair cost: $22–111.

Severity
✅ Low
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$22–111 (est.)

Symptoms

  • No sound from one of the speakers
  • Sound distortion
  • Intermittent sound

Causes

  • Broken or damaged wiring harness
  • Audio speaker malfunction
  • Audio amplifier problems
  • Oxidation of contacts

How to Fix

  1. Check the integrity of the wiring harness to channel 6 column
  2. Check the performance of the column
  3. Check contacts for oxidation
  4. If necessary, replace the column or wiring harness

Related codes

B147DB147EB147F

FAQ

What does the B147C code mean?

B147C is an OBD-II diagnostic trouble code that indicates: Channel 6 Audio Speaker Output Circuit Open

What causes a B147C error code?

The most common causes of B147C include: Broken or damaged wiring harness; Audio speaker malfunction; Audio amplifier problems; Oxidation of contacts.

How do I fix a B147C diagnostic trouble code?

To fix B147C: Check the integrity of the wiring harness to channel 6 column. Check the performance of the column. Check contacts for oxidation. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B147C?

Do not drive — repair immediately

How much does it cost to fix B147C?

The estimated repair cost for B147C is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat