AutoCodes – Ford – P0352 2003 Ford F150

P0352 2003 Ford F150 Code - Ignition Coil B Primary/Secondary Circuit Malfunction

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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: P0352 2003 Ford F150 indicates Ignition Coil B Primary/Secondary Circuit Malfunction.
Common causes: Common causes include Faulty Ignition Coil 2, Ignition Coil 2 harness is open or shorted, Ignition Coil 2 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 7,852

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
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0352 2003 Ford F150 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 P0352 2003 Ford F150 - Ignition Coil B Primary/Secondary Circuit Malfunction - AutoCodes.com — P0352 2003 Ford F150 Code - Ignition Coil B Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0352 2003 Ford F150?

Faulty Ignition Coil 2
Ignition Coil 2 harness is open or shorted
Ignition Coil 2 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0352 2003 Ford F150?

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 does this mean?

Code Tech Notes

Each ignition primary circuit is continuously monitored. The test fails when the PCM does not receive a valid IDM pulse signal from the ignition module (integrated in PCM).

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0352 2003 Ford F150 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 P0352 2003 Ford F150 code?

Need more information on how to fix the P0352 2003 Ford F150 code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P0352 2003 Ford F150 Code

1. What does OBDII code P0352 for a 2003 Ford F150 indicate?

The code P0352 signifies a primary/secondary circuit malfunction in the ignition coil B of the vehicle.

2. What are the common symptoms of a P0352 code in a 2003 Ford F150?

Common symptoms include engine misfires, rough idling, poor acceleration, stalling, and illuminated Check Engine Light.

3. What are the possible causes of a P0352 code in a 2003 Ford F150?

Potential causes include a faulty ignition coil, damaged wiring or connectors in the ignition coil circuit, issues with the PCM, or a problem with the spark plug related to the specific cylinder.

4. How can I diagnose the source of a P0352 code in my 2003 Ford F150?

You can diagnose the issue by conducting a visual inspection of the ignition coil and related wiring, performing a continuity test on the circuit, checking the spark plug condition, and using a scan tool to monitor live data.

5. Can I continue driving my 2003 Ford F150 with a P0352 code?

It is not recommended to drive the vehicle with a P0352 code as it can lead to further damage to the ignition system and affect the overall performance of the engine.

6. How can I repair a P0352 code in my 2003 Ford F150?

Repair options include replacing the faulty ignition coil, repairing or replacing damaged wiring or connectors, addressing any issues with the spark plugs, and resetting the fault code with a scan tool.

7. Is it necessary to replace all ignition coils if one is found to be faulty in a 2003 Ford F150 with a P0352 code?

While it's not mandatory to replace all ignition coils, it is recommended to inspect the condition of all coils and consider replacing them if they are old or showing signs of wear to prevent future issues.

8. Can a DIY enthusiast fix a P0352 code in a 2003 Ford F150?

Depending on your skill level and access to tools, a DIY enthusiast may be able to diagnose and repair a P0352 code by following a step-by-step guide or consulting a repair manual specific to the vehicle.

9. How much does it typically cost to repair a P0352 code in a 2003 Ford F150 at a mechanic or dealership?

The cost of repairing a P0352 code can vary depending on the extent of the issue, labor rates, and the price of parts. On average, the repair cost can range from $100 to $300 at a mechanic or dealership.

10. How soon should I address a P0352 code in my 2003 Ford F150 to prevent further damage?

It is advisable to address a P0352 code promptly to avoid potential damage to other engine components, ensure optimal vehicle performance, and prevent more costly repairs in the future.