AutoCodes – Ford – P0350 2002 Ford F150

P0350 2002 Ford F150 Code - Ignition Coil Primary Secondary Circuit Malfunction

Quick Answer

The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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: P0350 2002 Ford F150 indicates Ignition Coil Primary Secondary Circuit Malfunction .
Common causes: Common causes include Faulty Ignition Coil Primary/Secondary, Ignition Coil Primary/Secondary harness is open or shorted, Ignition Coil Primary/Secondary 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 3,761

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 P0350 2002 Ford F150 Description

The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. The power transistor turns ON and OFF the ignition coil primary circuit. This ON/OFF operation induces the proper high voltage in the coil secondary circuit.

OBDII Code P0350 2002 Ford F150 - Ignition Coil Primary Secondary Circuit Malfunction - AutoCodes.com — P0350 2002 Ford F150 Code - Ignition Coil Primary Secondary Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC P0350 2002 Ford F150?

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

How to Fix the DTC P0350 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 P0350 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 P0350 2002 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 P0350 2002 Ford F150 Code

1. What are the common symptoms of OBDII code P0350 on a 2002 Ford F150?

- Common symptoms include engine misfires, rough idling, loss of power, and difficulty starting the vehicle.

2. What can cause the ignition coil primary/secondary circuit malfunction on a 2002 Ford F150?

- Potential causes of P0350 can include a faulty ignition coil, damaged wiring or connectors, or issues with the ignition control module.

3. How can I diagnose the ignition coil primary/secondary circuit malfunction on my 2002 Ford F150?

- To diagnose P0350, you can use a scan tool to check for the specific code, visually inspect the ignition coil and related components, and perform a resistance test on the coil.

4. Can a bad spark plug cause OBDII code P0350 on a 2002 Ford F150?

- Yes, a faulty spark plug can lead to ignition coil issues and trigger code P0350 on a 2002 Ford F150.

5. What are some repair tips for addressing the ignition coil primary/secondary circuit malfunction on a 2002 Ford F150?

- Repair tips include replacing the faulty ignition coil, repairing any damaged wiring or connectors, and ensuring proper connections to the ignition control module.

6. Is it safe to continue driving with OBDII code P0350 on a 2002 Ford F150?

- It is not recommended to drive with code P0350, as it can lead to more severe engine problems and potential damage if left unresolved.

7. How much does it typically cost to repair OBDII code P0350 on a 2002 Ford F150?

- The cost of repairing P0350 can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor.

8. Can I reset the OBDII code P0350 on a 2002 Ford F150 without fixing the underlying issue?

- While you can clear the code temporarily, it will likely return if the root cause of the ignition coil malfunction is not addressed.

9. Will a disconnected battery reset OBDII code P0350 on a 2002 Ford F150?

- Disconnecting the battery may clear the code momentarily, but it is not a permanent solution and will not fix the underlying problem causing P0350.

10. How can I prevent OBDII code P0350 from recurring on my 2002 Ford F150?

- To prevent code P0350 from coming back, it's essential to regularly maintain your ignition system, replace spark plugs as recommended, and address any issues promptly to avoid further damage.