P0353 means the ECU saw an electrical fault in the coil 3 primary or secondary circuit. Usually a dead coil-on-plug, sometimes wiring or connector corrosion, rarely the ECU driver itself.
DTC/P0353·Toyota
P0353 on Toyota: Causes, Symptoms and Fix Cost
Quick Answer
Moderate SeverityNot safe to driveToyota
P0353 on a Toyota means the ECU saw an electrical fault in the coil 3 primary or secondary circuit. Usually a dead coil-on-plug, sometimes wiring or connector corrosion, rarely the ECU driver itself.
Repair cost on Toyota€25 - €1350
What does P0353 mean on a Toyota?
Toyota Camry
2007-2017 (2AR-FE 2.5L I4, 2GR-FE 3.5L V6)Toyota Denso coils are among the most reliable in the industry and rarely fail before 200,000 km. If P0353 appears early on a 2GR-FE V6, cylinder 3 sits at the rear of the block behind the intake plenum, so labour is higher than the front bank.
What causes P0353 on a Toyota?
Beyond the generic causes listed on the main P0353 page, these are the Toyota-specific patterns we see most often:
Toyota CamryDenso coil failure at very high mileage (200,000+ km)
Toyota CamryRodent damage to the coil harness on vehicles stored outdoors
Toyota CamryIridium plugs (SK16R11 or similar) worn past their 160,000 km service interval
How to diagnose P0353 on a Toyota with OBD2
Follow these steps to pinpoint the root cause of P0353:
- Read all stored codes. If P0303 is present alongside P0353, that confirms cylinder 3 is actually misfiring and not just an electrical glitch.
- Pull the coil on cylinder 3 and inspect the boot for cracks, carbon tracking, or oil in the plug well.
- Swap coil 3 with coil 1 or 2. Clear codes and drive. If the fault moves (P0351 or P0352), the coil is bad. If P0353 stays, the coil is fine.
- Pull the plug on cylinder 3. Replace if the electrode is worn, oil-fouled, or beyond the service interval (typically 60,000 km for copper, 100,000+ for iridium).
- Inspect the coil connector for green corrosion, spread pins, or a broken lock tab. Wiggle-test the harness with the engine idling.
- Back-probe the connector with a multimeter: verify battery voltage on the power pin (key on, engine off) and continuity from the trigger pin back to the ECU.
- If coil, plug, and wiring all test good and the code returns on the same cylinder, suspect an ECU ignition driver failure. That needs a shop with proper diagnostic gear.
How much does P0353 cost to fix on a Toyota? (EUR)
Estimated repair costs on a Toyota (Toyota parts and labour typically run 10% below the average for this code).
Prices estimated as of May 2026. Costs vary by region, vehicle, and shop.
Related codes that often appear with P0353 on Toyota
These codes commonly cluster with P0353 on Toyota vehicles:
FAQ: P0353 on Toyota
Can I just swap the coil from another cylinder to test?
Yes, and it's the fastest free diagnostic you can do. Move coil 3 to cylinder 1, clear the codes, drive for 10 minutes. If the misfire follows the coil to cylinder 1 (P0351), you've confirmed the coil is bad. If P0353 comes back, the problem is in the plug, wiring, or ECU.
Should I replace all coils at once or just cylinder 3?
If your car has over 150,000 km on the original coils and one has died, the others are on borrowed time. Replacing all of them costs more upfront but saves you repeat labour. On a 4-cylinder that's usually worth it, on a V8 with coil-on-plug it's a judgement call based on budget.
Why does my check engine light flash instead of staying solid?
A flashing CEL means active misfire severe enough to damage the catalytic converter. Pull over as soon as it's safe and don't drive on it. Continued driving with a flashing light typically writes off the cat within 30 to 60 minutes of running.
How much of a fuel economy hit will I see?
Expect 10 to 20 percent worse consumption. One dead cylinder means the others work harder, and the O2 sensors will command extra fuel trying to compensate for the unburned mixture reaching the exhaust.
Are cheap aftermarket coils worth it?
For older cars, name-brand coils from Bosch, NGK, or Denso in the €20 to €40 range are fine. Avoid no-name Amazon coils under €10 each, I've seen those fail within weeks. For German cars and turbocharged engines, stick to OE or OE-equivalent.
Looking for the full P0353 reference (all makes, full diagnosis flow, complete repair cost matrix)?
See the main P0353 guideSkanyx · Toyota
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