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Engine-Codes – Generic – P2315

P2315 Code - Ignition Coil 'F' Primary Control Circuit Low

Quick Answer

The diagnostic trouble code P2315 indicates a problem with the ignition coil 'F' primary control circuit being too low. Common causes include Faulty ignition coil 'F', Wiring or connection issues in the primary control circuit, Corrosion or damage to the ignition coil connector. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2315 indicates Ignition Coil 'F' Primary Control Circuit Low.
Common causes
Common causes include Faulty ignition coil 'F', Wiring or connection issues in the primary control circuit, Corrosion or damage to the ignition coil connector.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P2315 Description

The diagnostic trouble code P2315 indicates a problem with the ignition coil 'F' primary control circuit being too low. The ignition coil is a crucial component in the ignition system of a vehicle, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the engine cylinders. In this case, the primary control circuit for ignition coil 'F' is not functioning properly, leading to potential issues with the vehicle's performance.

OBDII Code P2315 - Ignition Coil 'F' Primary Control Circuit Low
P2315 Code - Ignition Coil 'F' Primary Control Circuit Low

Common Causes of P2315

  1. Faulty ignition coil 'F'
  2. Wiring or connection issues in the primary control circuit
  3. Corrosion or damage to the ignition coil connector
  4. Electrical system issues
  5. PCM (Powertrain Control Module) failure

Symptoms of P2315

  1. Engine misfires
  2. Rough idling
  3. Reduced fuel efficiency
  4. Engine stalling
  5. Illumination of the check engine light

How to Fix P2315

  1. Diagnose the specific cause of the issue using a scan tool and multimeter.
  2. Inspect the ignition coil 'F' and associated wiring for any signs of damage or corrosion.
  3. Replace the faulty ignition coil 'F' if necessary.
  4. Repair or replace any damaged wiring or connectors in the primary control circuit.
  5. Clear the diagnostic trouble codes and test the vehicle to ensure the issue has been resolved.

Cost to Fix P2315

The cost of repairing an ignition coil 'F' primary control circuit low issue can vary depending on the make and model of the vehicle, as well as the specific cause of the problem. On average, the parts for replacing an ignition coil can range from $50 to $200, while labor costs can add an additional $100 to $200. Overall, the total repair cost for this issue may fall in the range of $150 to $400. It's important to note that prices can fluctuate based on location, shop rates, and the complexity of the repair.

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Code P2315 Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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