P0359 Ford Code - Ignition Coil 'I' Primary/Secondary Circuit
Quick Answer
The OBD-II trouble code P0359 for Ford vehicles indicates a problem with the Ignition Coil 'I' Primary/Secondary Circuit. Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the powertrain control module (PCM). 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
- P0359 Ford indicates Ignition Coil 'I' Primary/Secondary Circuit .
- Common causes
- Common causes include Faulty ignition coil, Damaged wiring or connectors in the ignition coil circuit, Issues with the powertrain control module (PCM).
- 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 P0359 Ford Description
The OBD-II trouble code P0359 for Ford vehicles indicates a problem with the Ignition Coil 'I' Primary/Secondary Circuit. This code specifically refers to an issue with the electrical circuit of the ignition coil associated with cylinder 'I' in the engine. The ignition coil is a crucial component of the ignition system, responsible for converting the low voltage from the battery into the high voltage needed to ignite the fuel-air mixture in the combustion chamber.
Common Causes of P0359 Ford
- Faulty ignition coil
- Damaged wiring or connectors in the ignition coil circuit
- Issues with the powertrain control module (PCM)
- Worn or fouled spark plugs
- Electrical issues such as a short circuit or open circuit in the ignition system
Symptoms of P0359 Ford
- Engine misfires
- Rough idling or vibrations
- Decreased fuel efficiency
- Difficulty starting the engine
- Illuminated check engine light
How to Fix P0359 Ford
- Diagnose the specific cause of the issue using a scan tool to confirm the P0359 code and perform further testing if necessary.
- Inspect the ignition coil, wiring, and connectors for any visible damage or wear.
- Test the ignition coil's primary and secondary circuits using a multimeter to determine if it is functioning properly.
- Replace the faulty ignition coil or repair any damaged wiring or connectors as needed.
- Clear the trouble code from the vehicle's memory and test drive to ensure the issue has been resolved.
Cost to Fix P0359 Ford
The cost of repairing the Ignition Coil 'I' Primary/Secondary Circuit issue can vary depending on the specific cause of the problem and the cost of parts and labor. On average, replacing an ignition coil can range from $100 to $300, while addressing wiring or connector issues may cost around $50 to $100. Overall, the total repair cost for this code may range from $150 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.
Tech Notes for P0359 Ford
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