OBD Guide
ENFRDEESPT

B2455

Cellular Phone Microphone Circuit

B2455 is an OBD-II diagnostic trouble code meaning: Cellular Phone Microphone Circuit. Common causes: open or short circuit in microphone wiring harness, microphone malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • The microphone of the public address system does not work
  • Intermittent microphone operation
  • Noises or interference during a call

Causes

  • Open or short circuit in microphone wiring harness
  • Microphone malfunction
  • Problems with the hands-free control module
  • Poor contact in connectors

How to Fix

  1. Check the integrity of the microphone wiring harness
  2. Inspect connectors for corrosion or damage
  3. Test the microphone for functionality
  4. Check the hands-free control module
  5. If necessary, replace the microphone or control module

Related codes

B2454B2456

FAQ

What does the B2455 code mean?

B2455 is an OBD-II diagnostic trouble code that indicates: Cellular Phone Microphone Circuit

What causes a B2455 error code?

The most common causes of B2455 include: Open or short circuit in microphone wiring harness; Microphone malfunction; Problems with the hands-free control module; Poor contact in connectors.

How do I fix a B2455 diagnostic trouble code?

To fix B2455: Check the integrity of the microphone wiring harness. Inspect connectors for corrosion or damage. Test the microphone for functionality. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B2455?

Yes, but get it checked soon

How much does it cost to fix B2455?

The estimated repair cost for B2455 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

FRDEESPT

See also: Russian version · NationStat