OBD Guide

U3024

Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation

U3024 is an OBD-II diagnostic trouble code meaning: Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation. Common causes: faulty ignition relay, blown fuse. Estimated repair cost: $6–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–167 (est.)

Symptoms

  • Problems starting the engine
  • Spontaneous shutdown of electronic systems
  • Check Engine Light Is On
  • Malfunctions of the on-board computer
  • Loss of engine power

Causes

  • Faulty ignition relay
  • Blown fuse
  • Oxidation or damage to connectors
  • Open or short circuit in wiring
  • Control module malfunction

How to Fix

  1. Check the condition of the fuses
  2. Inspect the ignition relay
  3. Check the integrity of the wiring and connectors
  4. Measure the voltage in the power circuit
  5. If necessary, replace the control module

Related codes

Error U3024 by Vehicle Brand

FAQ

What does the U3024 code mean?

U3024 is an OBD-II diagnostic trouble code that indicates: Control Module Input Power Circuit B - Ignition Input On/Start Circuit Correlation

What causes a U3024 error code?

The most common causes of U3024 include: Faulty ignition relay; Blown fuse; Oxidation or damage to connectors; Open or short circuit in wiring.

How do I fix a U3024 diagnostic trouble code?

To fix U3024: Check the condition of the fuses. Inspect the ignition relay. Check the integrity of the wiring and connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with U3024?

Limited driving only, diagnose soon

How much does it cost to fix U3024?

The estimated repair cost for U3024 is $6–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat