OBD Guide
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B147D

Channel 6 Audio Speaker Output Circuit Shorted Together

B147D is an OBD-II diagnostic trouble code meaning: Channel 6 Audio Speaker Output Circuit Shorted Together. Common causes: short circuit in wiring harness, speaker malfunction. Estimated repair cost: $22–167.

Severity
✅ Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–167 (est.)

Symptoms

  • No sound from one of the speakers
  • Sound distortion
  • Completely turning off the audio system
  • Clicking or wheezing sounds from the speakers

Causes

  • Short circuit in wiring harness
  • Speaker malfunction
  • Damage to wire insulation
  • Problem with head audio unit
  • Oxidation of contacts
  • Incorrect installation of non-standard audio equipment

How to Fix

  1. Visual inspection of speaker wires and connections
  2. Checking speaker impedance
  3. Diagnostics of wiring harness integrity
  4. Checking the output signal from the head unit
  5. Replacing damaged components
  6. Resetting the error and checking the system operation

Related codes

B147CB147EB147F

FAQ

What does the B147D code mean?

B147D is an OBD-II diagnostic trouble code that indicates: Channel 6 Audio Speaker Output Circuit Shorted Together

What causes a B147D error code?

The most common causes of B147D include: Short circuit in wiring harness; Speaker malfunction; Damage to wire insulation; Problem with head audio unit.

How do I fix a B147D diagnostic trouble code?

To fix B147D: Visual inspection of speaker wires and connections. Checking speaker impedance. Diagnostics of wiring harness integrity. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B147D?

Yes, but get it checked soon

How much does it cost to fix B147D?

The estimated repair cost for B147D is $22–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat