OBD Guide
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B1441

Control Module Ignition OFF, Run, and Start Circuit

B1441 is an OBD-II diagnostic trouble code meaning: Control Module Ignition OFF, Run, and Start Circuit. Common causes: open or short circuit in wiring harness, ignition relay malfunction. Estimated repair cost: $56–167.

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

Symptoms

  • Engine won't start
  • Misfires
  • Unstable operation at idle
  • Check Engine Light Is On

Causes

  • Open or short circuit in wiring harness
  • Ignition relay malfunction
  • Damage to the ignition module
  • Contact corrosion
  • Fuse problems

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the condition of the ignition relay
  3. Check fuses
  4. Inspect contacts for corrosion
  5. Check the ignition module
  6. Replace faulty components

Related codes

P0351P0352P0353P0354

FAQ

What does the B1441 code mean?

B1441 is an OBD-II diagnostic trouble code that indicates: Control Module Ignition OFF, Run, and Start Circuit

What causes a B1441 error code?

The most common causes of B1441 include: Open or short circuit in wiring harness; Ignition relay malfunction; Damage to the ignition module; Contact corrosion.

How do I fix a B1441 diagnostic trouble code?

To fix B1441: Check the integrity of the wiring harness. Check the condition of the ignition relay. Check fuses. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B1441?

Limited driving only, diagnose soon

How much does it cost to fix B1441?

The estimated repair cost for B1441 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat