AutoCodes – Ford – P0355 1999 Ford F150

P0355 1999 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit

Quick Answer

The ignition system on the vehicle uses individual ignition coils for each cylinder. Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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: P0355 1999 Ford F150 indicates Ignition Coil 'E' Primary/Secondary Circuit .
Common causes: Common causes include Faulty Ignition Coil 5, Ignition Coil 5 harness is open or shorted, Ignition Coil 5 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 3,714

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 P0355 1999 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 P0355 1999 Ford F150 - Ignition Coil 'E' Primary/Secondary Circuit - AutoCodes.com — P0355 1999 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0355 1999 Ford F150?

Faulty Ignition Coil 5
Ignition Coil 5 harness is open or shorted
Ignition Coil 5 circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0355 1999 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 P0355 1999 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 P0355 1999 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 P0355 1999 Ford F150 Code

1. What are common symptoms of OBDII code P0355 on a 1999 Ford F150?

- Common symptoms include engine misfires, rough idling, poor acceleration, and potential stalling.

2. What are the possible causes of OBDII code P0355 on a 1999 Ford F150?

- The code P0355 typically indicates a malfunction in the ignition coil 'E' primary/secondary circuit. Possible causes include a faulty ignition coil, wiring issues, or a problem with the PCM.

3. How can I diagnose the issue related to OBDII code P0355 on a 1999 Ford F150?

- To diagnose the issue, you can use a scan tool to check for the specific code, visually inspect the ignition coil and related wiring, perform resistance tests on the coil, and test the coil with a multimeter.

4. Can I continue driving my 1999 Ford F150 with OBDII code P0355 present?

- It is not recommended to continue driving with code P0355 present, as it can lead to further damage to the ignition system and potentially cause more severe issues with the engine's performance.

5. How do I repair OBDII code P0355 on a 1999 Ford F150?

- The repair typically involves replacing the faulty ignition coil 'E', addressing any wiring issues, and clearing the code from the PCM using a scan tool.

6. Are there any DIY tips for fixing OBDII code P0355 on a 1999 Ford F150?

- While replacing the ignition coil can be a straightforward DIY task for some, it's recommended to follow a service manual or seek professional help to ensure proper installation and diagnosis.

7. How much does it cost to repair OBDII code P0355 on a 1999 Ford F150?

- The cost of repair can vary depending on the location, labor rates, and the price of the ignition coil. On average, the repair cost for code P0355 can range from $100 to $300.

8. Can a faulty spark plug cause OBDII code P0355 on a 1999 Ford F150?

- While a faulty spark plug can contribute to ignition issues, code P0355 specifically points to a problem with the ignition coil 'E' primary/secondary circuit. It's essential to diagnose the issue accurately to address the root cause.

9. Will resetting the PCM clear OBDII code P0355 on a 1999 Ford F150?

- Resetting the PCM may temporarily clear the code, but if the underlying issue with the ignition coil 'E' primary/secondary circuit is not resolved, the code is likely to reappear after driving the vehicle.

10. Is it necessary to replace all ignition coils if OBDII code P0355 triggers on a 1999 Ford F150?

- It is not necessary to replace all ignition coils when code P0355 triggers. Focus on diagnosing and replacing the specific faulty ignition coil 'E' to address the issue effectively.