Code Jaguar P1375 – Cylinder 5 ignition coil, early activation

Code P1375 Jaguar Description

Code P1375 Jaguar indicates a problem with the ignition coil of cylinder 5 in the vehicle’s engine. An ignition coil is an essential component of the ignition system, responsible for converting the low voltage supply from the battery into the high voltage supply needed to ignite the air-fuel mixture in the engine cylinders. In this case, the code specifically indicates early activation of the ignition coil for cylinder 5, which can lead to misfires, rough idling, and poor overall engine performance.

Common Causes of P1375 Jaguar

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

1. Faulty ignition coil for cylinder 5
2. Wiring issues or short circuits in the ignition system
3. Malfunction of the engine control module (ECM)
4. Spark plug issues (e.g., fouled, worn)
5. Carbon buildup on the spark plug or ignition coil

Symptoms of Jaguar P1375

1. Engine misfires
2. Rough idling
3. Decreased fuel efficiency
4. Engine stalling
5. Check engine light is on

How to Fix Code P1375 Jaguar

1. Start by diagnosing the specific cause of the early activation of the ignition coil for cylinder 5, using a diagnostic scanner to read the code and identify the underlying issue.
2. Inspect the ignition coil for cylinder 5 to check for any signs of damage or malfunction. Replace the ignition coil if necessary.
3. Check the wiring and connections of the ignition system for any faults or short circuits. Repair or replace any damaged wiring if needed.
4. Inspect the spark plug for cylinder 5, ensuring it is in good condition and the gap is correct. Replace the spark plug if necessary.
5. Clear the diagnostic codes from the vehicle’s ECM and test the vehicle to ensure the issue has been resolved.