OBD Guide

B384C

Keyless Entry Output Signal Circuit

B384C is an OBD-II diagnostic trouble code meaning: Keyless Entry Output Signal Circuit. Common causes: open or shorted wiring harness, malfunction of the solenoid valve (solenoid). Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Keyless entry system does not work
  • Problems with remote engine start
  • Flashing safety light on the dashboard

Causes

  • Open or shorted wiring harness
  • Malfunction of the solenoid valve (solenoid)
  • Damage to the keyless entry control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness
  2. Test the operation of the solenoids
  3. Check contacts and connectors for corrosion
  4. Replace faulty components
  5. Reset the error and check the system

Related codes

Error B384C by Vehicle Brand

FAQ

What does the B384C code mean?

B384C is an OBD-II diagnostic trouble code that indicates: Keyless Entry Output Signal Circuit

What causes a B384C error code?

The most common causes of B384C include: Open or shorted wiring harness; Malfunction of the solenoid valve (solenoid); Damage to the keyless entry control unit; Corrosion of contacts or connectors.

How do I fix a B384C diagnostic trouble code?

To fix B384C: Check the integrity of the wiring harness. Test the operation of the solenoids. Check contacts and connectors for corrosion. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B384C?

Limited driving only, diagnose soon

How much does it cost to fix B384C?

The estimated repair cost for B384C is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat