OBD Guide

B15C3

Speaker Output Short

B15C3 is an OBD-II diagnostic trouble code meaning: Speaker Output Short. Common causes: short circuit in wiring harness, speaker malfunction. Estimated repair cost: $11–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$11–56 (est.)

Symptoms

  • No beeps
  • Inoperative airbag warnings
  • Malfunction indicator light comes on

Causes

  • Short circuit in wiring harness
  • Speaker malfunction
  • Problems with connectors
  • ECU malfunction

How to Fix

  1. Check the integrity of the wiring harness to the speaker
  2. Check speaker impedance
  3. Inspect connectors for corrosion or damage
  4. Check power and control signals
  5. Replace speaker or repair wiring harness if necessary

Related codes

FAQ

What does the B15C3 code mean?

B15C3 is an OBD-II diagnostic trouble code that indicates: Speaker Output Short

What causes a B15C3 error code?

The most common causes of B15C3 include: Short circuit in wiring harness; Speaker malfunction; Problems with connectors; ECU malfunction.

How do I fix a B15C3 diagnostic trouble code?

To fix B15C3: Check the integrity of the wiring harness to the speaker. Check speaker impedance. Inspect connectors for corrosion or damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B15C3?

Limited driving only, diagnose soon

How much does it cost to fix B15C3?

The estimated repair cost for B15C3 is $11–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat