AutoCodes – Ford – P0355 2002 Ford F150

P0355 2002 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 2002 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 6,318

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 2002 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 2002 Ford F150 - Ignition Coil 'E' Primary/Secondary Circuit - AutoCodes.com — P0355 2002 Ford F150 Code - Ignition Coil 'E' Primary/Secondary Circuit

What does this mean?

What are the Possible Causes of the DTC P0355 2002 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 2002 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 2002 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 2002 Ford F150 code?

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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 P0355 2002 Ford F150 Code

1. What are the common symptoms of OBDII code P0355 on a 2002 Ford F150?

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

2. What is the main cause of OBDII code P0355 on a 2002 Ford F150?

- The main cause is typically a faulty ignition coil 'E' or issues with the primary/secondary circuit related to that specific coil.

3. How can I diagnose the issue causing OBDII code P0355 on my 2002 Ford F150?

- You can diagnose the problem by performing a visual inspection of the ignition coil 'E', checking for loose connections, testing the coil's resistance, and scanning for any additional trouble codes.

4. Can a bad spark plug cause OBDII code P0355 on a 2002 Ford F150?

- Yes, a bad spark plug can contribute to triggering code P0355 as it can lead to excessive stress on the ignition coil 'E' and affect its performance.

5. What is the recommended repair for OBDII code P0355 on a 2002 Ford F150?

- The recommended repair is to replace the faulty ignition coil 'E' and address any underlying issues with the primary/secondary circuit, such as damaged wiring or connectors.

6. Are aftermarket ignition coils a suitable replacement for a 2002 Ford F150 experiencing code P0355?

- While aftermarket ignition coils can be a cost-effective option, it is recommended to use OEM or high-quality replacement coils to ensure proper performance and longevity.

7. Can driving with OBDII code P0355 on a 2002 Ford F150 cause further damage to the vehicle?

- Driving with code P0355 can potentially lead to more severe engine issues, such as catalytic converter damage or permanent engine misfires, so it is advisable to address the problem promptly.

8. Is it possible to reset OBDII code P0355 on a 2002 Ford F150 without fixing the underlying issue?

- While you can clear the code temporarily, it will likely reappear if the root cause, such as a faulty ignition coil 'E', is not addressed.

9. How long does it typically take to repair OBDII code P0355 on a 2002 Ford F150?

- The repair time can vary depending on the experience level of the person performing the repair, but it usually takes around 1-2 hours to replace the ignition coil 'E' and address related issues.

10. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P0355 on a 2002 Ford F150?

- Yes, a DIY enthusiast with basic automotive knowledge can usually replace the ignition coil 'E' and troubleshoot related circuitry issues with the help of online guides or repair manuals.