OBD Guide

P2306

Ignition Coil C Primary Control Circuit Low

P2306 is an OBD-II diagnostic trouble code meaning: Ignition Coil C Primary Control Circuit Low. Common causes: open or short circuit in the ignition coil control circuit, faulty ignition coil. Estimated repair cost: $17–56.

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

Symptoms

  • Misfire in cylinder C
  • Reduced engine power
  • Increased fuel consumption
  • Rough engine idling
  • Check Engine light comes on

Causes

  • Open or short circuit in the ignition coil control circuit
  • Faulty ignition coil
  • Problems with the wiring harness or connectors
  • Engine control unit (ECU) malfunction
  • Poor ground connection

How to Fix

  1. Check the integrity of the ignition coil control circuit
  2. Check the resistance of the ignition coil
  3. Inspect the wiring harness and connectors for damage.
  4. Check ground connections
  5. If necessary, replace the ignition coil

Related codes

Error P2306 by Vehicle Brand

FAQ

What does the P2306 code mean?

P2306 is an OBD-II diagnostic trouble code that indicates: Ignition Coil C Primary Control Circuit Low

What causes a P2306 error code?

The most common causes of P2306 include: Open or short circuit in the ignition coil control circuit; Faulty ignition coil; Problems with the wiring harness or connectors; Engine control unit (ECU) malfunction.

How do I fix a P2306 diagnostic trouble code?

To fix P2306: Check the integrity of the ignition coil control circuit. Check the resistance of the ignition coil. Inspect the wiring harness and connectors for damage.. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2306?

Limited driving only, diagnose soon

How much does it cost to fix P2306?

The estimated repair cost for P2306 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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