P0354 on Honda: How to Diagnose & Fix
Ignition Coil D Primary/Secondary Circuit Malfunction
1 Honda model · 1 documented issue · $80-$300 repair
P0354 on Honda by model: symptoms, diagnosis and fix
Ignition coil packs can fail causing engine misfires. Usually one coil fails at a time. Engine misfire, rough idle, check engine light with misfire codes. Bosch ($50-80 each) or Denso ($60-90 each) replacement coils recommended on FitFreak. Replace all four at once ($200-300) to prevent future failures and repeated labor costs. DIY installation very easy (bolt on, connector plug) - saves $100-200 in shop labor.
Common Symptoms
- Engine misfire
- Rough idle
- Check engine light with misfire codes P0300-P0308
- Reduced fuel economy
- Hesitation during acceleration
How to Fix
Test coil pack resistance with multimeter before replacing to confirm failure. Replace failed ignition coil pack. Consider replacing all four if one fails (preventive measure, $200-300 for all four). Bosch ($50-80 each) or Denso ($60-90 each) recommended. DIY installation very easy.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Genuine Honda 30520-PWC-S01 ignition coilOEMHonda 30520-PWC-S01
First-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2007-2008 U.S. Honda Fit Base and Sport, 5MT or 5AT; one coil per cylinder.
- Genuine Honda 30520-RB0-S01 ignition coilOEMHonda 30520-RB0-S01
Second-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2009-2013 U.S. Honda Fit Base/Fit and Sport, 5MT or 5AT; one coil per cylinder.
- Genuine Honda 30520-5R0-013 ignition coilOEMHonda 30520-5R0-013
Third-generation replacement after diagnosis identifies a failed coil Fitment/availability: 2015-2020 U.S. Honda Fit, all cataloged trims, 6MT or CVT; one coil per cylinder.
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Owner tips & cautions
- TipReplace all four at once ($200-300) to prevent future failures and repeated labor costs
- TipDIY installation is very easy - bolt on, connector plug - saves $100-200 in shop labor
- WarningAvoid knockoff coils on eBay/Amazon - they fail quickly and waste money
Sources for this issue (2)
P0354 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0354 mean on a Honda?
P0354 stands for "Ignition Coil D Primary/Secondary Circuit Malfunction." This is an ignition/engine code. The ignition coil boosts low battery voltage into the high-voltage spark that ignites the air-fuel mixture. P0354 means the engine computer detected a fault in the primary or secondary circuit of ignition coil 'D' — the coil isn't returning the proper signal when it's told to fire. This commonly produces a misfire, rough running, hesitation or reduced power, and ongoing misfires can damage the catalytic converter over time. On Honda it is documented across 1 model: Fit.
What are the most common causes of P0354?
The most common causes of P0354 are: Failed ignition coil 'D', Damaged wiring or corroded connector at the coil, Open or short in the coil primary/secondary circuit, Worn or fouled spark plug adding load to the coil, Poor power or ground supply to the coil, Faulty ignition driver in the ECM (less common). The specific cause varies by vehicle.
How much does it cost to fix P0354 on a Honda?
Published repair estimates on Honda range from $80 to $300 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0354 on a different make?
View P0354 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.