AutoCodes – Ford – P0356 1998 Ford F150

P0356 1998 Ford F150 Code - Ignition Coil 'F' Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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: P0356 1998 Ford F150 indicates Ignition Coil 'F' Primary/Secondary Circuit .
Common causes: Common causes include Faulty Ignition Coil 6, Ignition Coil 6 harness is open or shorted, Ignition Coil 6 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 2,912

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 P0356 1998 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 P0356 1998 Ford F150 - Ignition Coil 'F' Primary/Secondary Circuit - AutoCodes.com — P0356 1998 Ford F150 Code - Ignition Coil 'F' Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0356 1998 Ford F150?

Faulty Ignition Coil 6
Ignition Coil 6 harness is open or shorted
Ignition Coil 6 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0356 1998 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 P0356 1998 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 P0356 1998 Ford F150 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 P0356 1998 Ford F150 Code

1. What are the common symptoms of OBDII code P0356 in a 1998 Ford F150?

- Common symptoms include rough idling, engine misfires, loss of power, and illuminated Check Engine Light.

2. What does the OBDII code P0356 on a 1998 Ford F150 indicate?

- The code P0356 specifically refers to a fault in the Ignition Coil 'F' Primary/Secondary Circuit.

3. What are the possible causes of OBDII code P0356 in a 1998 Ford F150?

- Possible causes include a faulty ignition coil, wiring issues in the ignition coil circuit, poor electrical connections, or a damaged PCM.

4. How can I diagnose the Ignition Coil 'F' Primary/Secondary Circuit issue in my 1998 Ford F150?

- To diagnose the issue, you can use a scan tool to check for codes, perform a visual inspection of the ignition coil and wiring, and conduct resistance tests on the coil.

5. Can I still drive my 1998 Ford F150 with OBDII code P0356?

- It is not recommended to drive your vehicle with code P0356 as it can lead to further damage and potential safety hazards. Immediate attention and repair are advised.

6. How can I repair OBDII code P0356 in my 1998 Ford F150?

- Repair typically involves replacing the faulty ignition coil, addressing any wiring issues, ensuring proper electrical connections, and resetting the PCM.

7. Can a DIY enthusiast fix OBDII code P0356 in a 1998 Ford F150?

- While some experienced DIY enthusiasts may be able to diagnose and replace the faulty ignition coil, it is recommended to consult a professional mechanic for accurate diagnosis and repair.

8. Are there any preventive measures to avoid OBDII code P0356 in a 1998 Ford F150?

- Regular maintenance, including checking the condition of ignition coils, spark plugs, and wiring, can help prevent issues that may trigger code P0356.

9. Is it necessary to clear the OBDII code P0356 after repairing the issue in a 1998 Ford F150?

- Yes, it is recommended to clear the code after repairing the issue to reset the Check Engine Light and ensure the system recognizes the repair.

10. How much does it cost to repair OBDII code P0356 in a 1998 Ford F150 at a mechanic?

- The cost of repairing code P0356 can vary depending on the root cause, labor rates, and replacement parts, but it typically ranges from $150 to $400.