OBD Guide

P2331

Ignition Coil K Primary Control Circuit High

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