OBD Guide

B0123

Pedestrian Alert Speaker B

B0123 is an OBD-II diagnostic trouble code meaning: Pedestrian Alert Speaker B. Common causes: open or short circuit in speaker wiring harness, pedestrian alert speaker malfunction. Estimated repair cost: $56–167.

Severity
Low
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • No pedestrian warning horn
  • Incorrect operation of the sound signal
  • Doença 27 check engine light coming on could be people.

Causes

  • Open or short circuit in speaker wiring harness
  • Pedestrian alert speaker malfunction
  • Problems in the system control module
  • Poor contact in circuit connectors

How to Fix

  1. Checking the integrity of the speaker wiring harness
  2. Pedestrian Alert Speaker Testing
  3. Checking the system control module
  4. Replacing faulty components

Related codes

Error B0123 by Vehicle Brand

FAQ

What does the B0123 code mean?

B0123 is an OBD-II diagnostic trouble code that indicates: Pedestrian Alert Speaker B

What causes a B0123 error code?

The most common causes of B0123 include: Open or short circuit in speaker wiring harness; Pedestrian alert speaker malfunction; Problems in the system control module; Poor contact in circuit connectors.

How do I fix a B0123 diagnostic trouble code?

To fix B0123: Checking the integrity of the speaker wiring harness. Pedestrian Alert Speaker Testing. Checking the system control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0123?

Yes, but get it checked soon

How much does it cost to fix B0123?

The estimated repair cost for B0123 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat