P0352
Fix within a few daysThe engine computer detected an electrical problem with the ignition coil for cylinder #2.
Code P0352 means the engine computer detected an electrical problem with the ignition coil for cylinder #2. Common causes: Faulty ignition coil (70%), wiring issues (20%), or rarely the PCM (5%). Drivability: Limit driving, fix within a few days. Repair cost: $50-$200 DIY, $150-$500 professional.
Can I Drive With P0352?
Limit driving, fix within a few days
Essential trips under 10 miles, avoid highways and heavy acceleration. Prolonged driving with a misfire will cause further damage.
Stop driving immediately if: Flashing Check Engine Light, loud engine noises, burning smell, rotten egg smell from exhaust, significant power loss, or severe engine shaking.
Symptoms of P0352
- 1Check Engine Light is on (may be flashing, indicating a severe misfire)
- 2Engine runs rough or idles poorly
- 3Reduced engine power or acceleration
- 4Engine hesitation or stumbling
- 5Engine shaking or vibrating
- 6Poor fuel economy
Common Causes of P0352
Parts most likely causing this code, ranked by probability
An internal electrical fault within the coil prevents it from generating a strong spark or firing at all.
70% of P0352 cases are fixed by replacing the ignition coil for cylinder #2
Frayed wires, corrosion, or a loose connection disrupt the electrical signal or power supply to the coil.
20% of P0352 cases are fixed by repairing or replacing the wiring/connector
The PCM's driver circuit for the cylinder #2 ignition coil is faulty, failing to send the correct signal.
5% of P0352 cases are fixed by replacing or reprogramming the PCM
A severely fouled, damaged, or incorrect spark plug can create excessive resistance or a short, causing the coil's primary or secondary circuit to malfunction.
5% of P0352 cases are fixed by replacing the spark plug for cylinder #2
Check These First (Before Buying Parts)
- Visually inspect the ignition coil for cylinder #2 for any cracks, burn marks, or signs of physical damage.
- Check the wiring harness and connector leading to the cylinder #2 ignition coil for any frayed wires, loose connections, or corrosion.
- Listen for any obvious misfire sounds (engine stumbling, shaking).
How to Diagnose P0352
- 1Visually inspect the ignition coil and wiring harness for cylinder #2 for any obvious damage, fraying, or corrosion.
- 2Swap the ignition coil from cylinder #2 with a known good coil from another cylinder (e.g., cylinder #1 or #3) and see if the code changes to P0351 or P0353. If it does, the coil is faulty.
- 3Using a multimeter, check for proper voltage supply and ground at the ignition coil connector for cylinder #2 with the key on.
- 4Check the resistance of the primary and secondary windings of the ignition coil for cylinder #2 (if specifications are available).
- 5If the coil tests good and wiring is intact, use a scan tool to check for any other related codes or live data parameters that might indicate a PCM issue.
P0352 on Popular Vehicles
Toyota Camry
2007-2024P0352 on a Camry is frequently caused by a failing ignition coil. These coils can degrade over time, especially with higher mileage.
75% fixed by replacing the ignition coil
Honda Accord
2003-2024Honda Accords are prone to ignition coil failures, and P0352 is a common code. It's important to check the coil pack connector for corrosion or damage, as this can also trigger the code.
70% fixed by replacing the ignition coil, 15% by wiring repair
Ford F-150
2004-2024On Ford F-150s, P0352 often indicates a bad ignition coil, particularly on V8 engines where coils are exposed to engine heat. Always check the spark plug for cylinder #2 as well, as a worn plug can stress the coil.
65% fixed by replacing the ignition coil, 10% by replacing the spark plug
Frequently Asked Questions
What does P0352 mean?
P0352 indicates that the Powertrain Control Module (PCM) has detected an electrical malfunction in the primary or secondary circuit of the ignition coil for cylinder #2. This means the coil isn't getting the correct signal or power to fire the spark plug properly.
Can I drive with P0352?
Yes, for short trips only. You can drive your vehicle to a repair shop or home, but avoid long distances or heavy acceleration. A flashing Check Engine Light means a severe misfire is occurring, and you should stop driving immediately to prevent serious damage.
Will P0352 clear itself?
No, P0352 will not clear itself. The underlying electrical issue with the ignition coil or its circuit needs to be diagnosed and repaired. Once the repair is made, you will need to clear the code with an OBD-II scan tool.
How do I fix P0352 myself?
Start by visually inspecting the ignition coil and its wiring for cylinder #2. If no obvious damage is found, swap the cylinder #2 coil with a coil from another cylinder. If the code moves to the new cylinder, replace the faulty ignition coil. If the code stays, check the wiring and connector for cylinder #2 with a multimeter.
How much does it cost to fix P0352?
The cost to fix P0352 ranges from $50-$200 for DIY, primarily for the cost of a new ignition coil. Professional repair typically costs $150-$500, which includes parts and labor for diagnosis and replacement.
P0352 keeps coming back - why?
If P0352 keeps returning after replacing the coil, it points to an underlying issue. Common reasons include faulty wiring or a corroded connector to the coil, a bad spark plug in cylinder #2, or, in rare cases, a problem with the Powertrain Control Module (PCM) itself.
Will P0352 fail emissions/smog test?
Yes, P0352 will cause your vehicle to fail an emissions or smog test. The Check Engine Light being on is an automatic failure, and the misfire condition directly impacts exhaust emissions.
What's the difference between P0352 and P0302?
P0352 indicates an electrical circuit malfunction specifically with the ignition coil for cylinder #2. P0302 indicates a general misfire detected in cylinder #2, which could be caused by a faulty spark plug, fuel injector, low compression, or an ignition coil issue. P0352 points directly to the coil's electrical integrity, while P0302 points to the result (misfire).
P0352 on Honda Civic?
P0352 on a Honda Civic often points directly to a faulty ignition coil. Honda Civics, especially 2006-2015 models, are known to have ignition coil failures. It's a straightforward replacement, but inspect the wiring harness for any rodent damage as well.
Questions to Ask Your Mechanic
Did you test the resistance of the ignition coil for cylinder #2, and did you check for proper voltage and ground at the coil connector?
Good answer: Yes, I tested the coil's primary and secondary resistance and confirmed it was out of spec. I also verified the power and ground signals at the connector were correct, confirming the coil itself is the issue.
Repair Cost Estimate
DIY Repair
Parts only
$50-$200
Shop Repair
Parts + labor
$150-$500
Save $100-$300 by doing it yourself
Difficulty
intermediate
Time
0.5-2 hours
Intermediate - Requires basic hand tools, an OBD-II scan tool to clear codes, and potentially a multimeter for electrical checks. Swapping a coil is easy, but diagnosing wiring or PCM issues requires more skill.
Cost of Waiting
Continued misfires from P0352 send unburned fuel into your exhaust system. This unburned fuel can overheat and severely damage your catalytic converter, leading to a repair bill of $800-$2,500. A $50-$100 ignition coil replacement now prevents a much larger expense later.
While You're In There...
If you're replacing the coil, it's easy to access the spark plug. A worn or fouled spark plug can cause the coil to fail prematurely or contribute to the misfire.
The boot often comes with the new coil, but if replacing just the coil, ensure the boot is in good condition to prevent spark arcing.
Applying dielectric grease to the spark plug boot helps seal out moisture and ensures good electrical connection, preventing future issues.
Tools You'll Need
- OBD-II Scan Tool
- Basic hand tools (ratchet, extensions, sockets)
- Spark plug socket (if replacing spark plug)
- Multimeter (for electrical diagnostics)
- Dielectric grease
P0352 is a very common ignition system code. Most repairs involve replacing a single ignition coil, which is a straightforward fix that will get your engine running smoothly again.
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Your Next Steps
Step 1: Visually inspect the ignition coil and its wiring for cylinder #2. Look for any obvious damage, loose connections, or corrosion.
Step 2: If no visual issues, swap the ignition coil from cylinder #2 with a coil from a different cylinder. Clear the code and drive the vehicle. If the code changes to P035X (where X is the new cylinder number), replace the original cylinder #2 ignition coil.
Step 3: If the code remains P0352 after swapping coils, use a multimeter to test the power and ground at the cylinder #2 coil connector. If power/ground are missing, trace the wiring back to the PCM. If power/ground are present, the issue could be the spark plug or, rarely, the PCM.