OBD Guide

P2331

Ignition Coil K Primary Control Circuit High

P2331 is an OBD-II diagnostic trouble code meaning: Ignition Coil K Primary Control Circuit High. Common causes: faulty ignition coil, open or short circuit in control circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Misfire in one of the cylinders
  • The engine runs rough
  • Power Loss
  • Increased fuel consumption
  • Check Engine light comes on

Causes

  • Faulty ignition coil
  • Open or short circuit in control circuit
  • Poor contact in coil connectors
  • Wiring Harness Problems
  • Engine control unit (ECU) malfunction

How to Fix

  1. Check the condition of the ignition coil
  2. Inspect the control circuit for damage
  3. Check the contacts in the coil connectors
  4. Test control circuit resistance
  5. If necessary, replace the ignition coil

Related codes

Error P2331 by Vehicle Brand

FAQ

What does the P2331 code mean?

P2331 is an OBD-II diagnostic trouble code that indicates: Ignition Coil K Primary Control Circuit High

What causes a P2331 error code?

The most common causes of P2331 include: Faulty ignition coil; Open or short circuit in control circuit; Poor contact in coil connectors; Wiring Harness Problems.

How do I fix a P2331 diagnostic trouble code?

To fix P2331: Check the condition of the ignition coil. Inspect the control circuit for damage. Check the contacts in the coil connectors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2331?

Limited driving only, diagnose soon

How much does it cost to fix P2331?

The estimated repair cost for P2331 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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