AutoCodes – Ford – P0351 2000 Ford F150

P0351 2000 Ford F150 Code - Ignition Coil A 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 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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: P0351 2000 Ford F150 indicates Ignition Coil A Primary/Secondary Circuit Malfunction .
Common causes: Common causes include Faulty Ignition Coil 1, Ignition Coil 1 harness is open or shorted, Ignition Coil 1 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 4,237

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
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0351 2000 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 P0351 2000 Ford F150 - Ignition Coil A Primary/Secondary Circuit Malfunction - AutoCodes.com — P0351 2000 Ford F150 Code - Ignition Coil A Primary/Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0351 2000 Ford F150?

Faulty Ignition Coil 1
Ignition Coil 1 harness is open or shorted
Ignition Coil 1 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0351 2000 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 P0351 2000 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.

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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 P0351 2000 Ford F150 Code

1. What are the common symptoms of OBDII code P0351 on a 2000 Ford F150?

- Common symptoms include engine misfires, rough idling, loss of power, and illuminated check engine light.

2. What can cause the ignition coil A primary/secondary circuit malfunction on a 2000 Ford F150?

- Possible causes include a faulty ignition coil, damaged wiring or connectors, issues with the ignition coil driver circuit, or a problem with the PCM.

3. How can I diagnose the OBDII code P0351 on my 2000 Ford F150?

- You can diagnose this code by performing a visual inspection of the ignition coil and its connectors, testing the ignition coil with a multimeter, and checking the wiring for any damage or corrosion.

4. Can I drive my 2000 Ford F150 with OBDII code P0351?

- It is not recommended to drive your vehicle with this code as it can lead to further damage to the ignition system and potentially cause more severe issues.

5. How do I repair OBDII code P0351 on a 2000 Ford F150?

- To repair this code, you may need to replace the faulty ignition coil, repair any damaged wiring or connectors, or address any issues with the ignition coil driver circuit.

6. Are there any DIY tips for fixing OBDII code P0351 on a 2000 Ford F150?

- DIY tips include checking and cleaning the ignition coil connectors, inspecting the wiring harness for any visible damage, and ensuring all connections are secure.

7. Will resetting the check engine light clear OBDII code P0351 on a 2000 Ford F150?

- Resetting the check engine light may temporarily clear the code, but it is important to address the underlying issue causing the code to prevent it from reoccurring.

8. How much does it cost to repair OBDII code P0351 on a 2000 Ford F150?

- The cost of repairing this code can vary depending on the exact cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Can a bad spark plug cause OBDII code P0351 on a 2000 Ford F150?

- While a bad spark plug can contribute to ignition system issues, OBDII code P0351 specifically indicates a malfunction in the ignition coil A primary/secondary circuit.

10. Is it safe to continue driving my 2000 Ford F150 if OBDII code P0351 is intermittent?

- It is best to address the issue promptly even if the code is intermittent to prevent potential damage to the ignition system and ensure the proper functioning of your vehicle.