Lincoln Code P1365 – Ignition Coil Secondary Circuit Malfunction

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Lincoln P1365 Code Description

The P1365 code for Lincoln vehicles indicates a failure in the ignition coil secondary circuit. The ignition coil is a crucial component of the ignition system, responsible for converting the battery’s low voltage into the high voltage needed to ignite the air-fuel mixture in the engine cylinders. The secondary circuit failure refers to a problem with the coil’s secondary winding, which can result in a lack of spark and misfires, ultimately affecting the vehicle’s performance.

Common Causes of Lincoln P1365

NOTE: The listed causes may not be a complete list of all potential issues, and there could be other causes.

  1. Faulty ignition coil
  2. Damaged or loose wiring connections
  3. Faulty ignition control module
  4. Corrosion or moisture in the ignition system
  5. Electrical issues in the secondary circuit

Symptoms of Lincoln P1365

  1. Engine misfires
  2. Rough idling
  3. Difficulty starting the vehicle
  4. Decreased fuel efficiency
  5. Check engine light is on

How to Fix Lincoln P1365 Code

  1. Diagnose the issue using a scan tool to retrieve the error code and by inspecting the ignition coil, wiring connections, and ignition control module.
  2. Replace the faulty ignition coil if it is identified as the cause of the secondary circuit failure.
  3. Check and repair any damaged or loose wiring connections in the ignition system.
  4. Test the ignition control module to ensure it is functioning properly, replacing it if necessary.
  5. Clear the error code from the vehicle’s computer and test the vehicle to ensure the issue has been resolved.

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