OBD Guide

P2312

Ignition Coil E Primary Control Circuit Low

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Misfire in one cylinder
  • The engine runs rough
  • Reduced engine power
  • Increased fuel consumption
  • Check Engine Light Is On

Causes

  • Faulty ignition coil
  • Open or short circuit in wiring
  • Poor contact in coil connector
  • Coil driver failure in ECU
  • Grounding problems

How to Fix

  1. Check the condition of the ignition coil
  2. Inspect wiring and connectors for damage
  3. Check the resistance of the ignition coil
  4. Check the voltage on the coil
  5. If necessary, replace the ignition coil

Related codes

Error P2312 by Vehicle Brand