AutoCodes – Jaguar – P0354 Jaguar

P0354 Jaguar Code - Ignition Coil 'D' Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 circuit poor electrical connection. 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: P0354 Jaguar indicates Ignition Coil 'D' Primary/Secondary Circuit .
Common causes: Common causes include Faulty Ignition Coil 4, Ignition Coil 4 harness is open or shorted, Ignition Coil 4 circuit poor electrical connection.
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.

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Code Popularity 10,771

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0354 Jaguar Description

The ignition system on the vehicle uses individual ignition coils for each cylinder. The Engine Control Module (ECM) controls each ignition coil operation. The ECM sends a ON/OFF signal to energize the ignition coil to create a spark at the spark plug when a spark is required at the cylinder.

OBDII Code P0354 Jaguar - Ignition Coil 'D' Primary/Secondary Circuit - AutoCodes.com — P0354 Jaguar Code - Ignition Coil 'D' Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0354 Jaguar?

Faulty Ignition Coil 4
Ignition Coil 4 harness is open or shorted
Ignition Coil 4 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0354 Jaguar?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0354 Jaguar code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0354 Jaguar code?

Need more information on how to fix the P0354 Jaguar code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0354 Jaguar code diagnosed by a professional: Find a repair shop in your area

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.

Frequently Asked Questions about P0354 Jaguar Code

1. What are the common symptoms of OBDII code P0354 in a Jaguar related to the Ignition Coil 'D' Primary/Secondary Circuit?

- Common symptoms include engine misfires, rough idle, lack of power, and illuminated check engine light.

2. What are the potential causes of OBDII code P0354 in a Jaguar?

- The code P0354 in a Jaguar typically indicates a faulty ignition coil 'D', damaged wiring or connectors, or issues with the engine control module (ECM).

3. How can I diagnose the OBDII code P0354 in a Jaguar?

- Diagnostic steps include inspecting the ignition coil 'D', checking the wiring and connectors for damage, and using a scan tool to analyze the ECM data.

4. Can a DIY enthusiast repair OBDII code P0354 in a Jaguar?

- Yes, if the issue is a faulty ignition coil 'D', it can be replaced by a DIY enthusiast with basic automotive repair skills and tools.

5. What are some tips for repairing OBDII code P0354 in a Jaguar?

- Ensure the engine is cool before starting repairs, use proper safety precautions when working around ignition components, and consult the vehicle's service manual for specific instructions.

6. Are there any potential risks associated with driving with OBDII code P0354 in a Jaguar?

- Continuing to drive with code P0354 can lead to further engine damage, decreased fuel efficiency, and potential catalytic converter damage.

7. How much does it cost to repair OBDII code P0354 in a Jaguar at a professional auto repair shop?

- Costs can vary depending on the exact cause of the issue, but typically, replacing an ignition coil 'D' in a Jaguar can cost between $150 to $300 at a professional auto repair shop.

8. Can OBDII code P0354 in a Jaguar be triggered by other underlying issues?

- Yes, other underlying issues such as a faulty ECM, engine mechanical problems, or sensor malfunctions can sometimes trigger code P0354 alongside ignition coil 'D' issues.

9. After repairing OBDII code P0354 in a Jaguar, how can I reset the check engine light?

- The check engine light can be reset using an OBDII scanner or by disconnecting the car's battery for a few minutes to clear the ECM's memory.

10. Is it important to address OBDII code P0354 immediately in a Jaguar?

- Yes, it is important to address OBDII code P0354 promptly to prevent further damage to the engine and ensure optimal performance and fuel efficiency of the vehicle.