A Honda Fit Owner's Guide to the 2015-2020 Engine Oil Pressure Switch
Seeing the oil light flicker on your Honda Fit? It might be a simple sensor issue you can fix.
- A flickering oil light on a Fit with a full oil tank often points to a bad sensor, not a bad engine.
- The Check Engine Light with code P0522 is a common sign of a failing oil pressure switch.
- Quality aftermarket brands like Beck Arnley and Walker Products are reliable alternatives to the more expensive OEM part.
- This is a DIY-friendly repair that can be completed in under an hour with basic tools.
Is Your Honda Fit's Oil Pressure Switch Failing?
A bad oil pressure switch can be alarming, but it's often a simple fix. Unlike true low oil pressure, which is a critical engine problem, a faulty sensor often just sends a false signal. Knowing the difference can save you from worry and unnecessary repairs. Here are the most common signs that the switch itself is the problem.
Symptoms of a Bad Switch
- Flickering Oil Light: The oil pressure light on your dashboard may flicker, especially at idle, or stay on constantly even when the oil level is correct.
- Check Engine Light: A failing oil pressure switch can trigger the check engine light. A common trouble code associated with this is P0522, which points to a low voltage reading from the sensor circuit. 🎬 Watch: Diagnosing the P0522 code on your Honda Fit.
- Oil Leak: The switch itself can fail and leak oil. You might notice oil residue on the sensor or small drips under your car near the engine block.
Don't Ignore the Warning Light
Even if you suspect a bad sensor, you should always check your engine oil level immediately when the oil light comes on. Driving with genuine low oil pressure can cause severe and permanent engine damage. If the oil level is fine but the light stays on, have the system checked by a professional or diagnose it yourself promptly.
Choosing the Right Aftermarket Part
When replacing the oil pressure switch on your Honda Fit, you have a choice between OEM (Original Equipment Manufacturer) and aftermarket parts. For a simple sensor like this, a quality aftermarket part can offer the same performance as the original for a lower price.
Two common aftermarket brands available for your Fit are Beck Arnley and Walker Products.
- Beck Arnley: This brand has a long-standing reputation for sourcing parts that meet or exceed original specifications. Often, they package the same part made by the original manufacturer, just in a different box.
- Walker Products: Walker is a well-known manufacturer of engine management sensors. They engineer their parts to be direct-fit replacements that perform like the original, ensuring reliable readings and a long service life.
For the 2015-2020 Honda Fit, both Beck Arnley and Walker Products are considered reliable choices that provide good value without sacrificing quality.
Pro Tip: Check the Connector
Before ordering, it's a good idea to visually inspect the old sensor on your car. Note the shape of the electrical connector and the number of pins to ensure the new part is an exact match.
Cost of Replacing the Engine Oil Pressure Switch
The total cost depends on whether you do the job yourself or take it to a repair shop. The part itself is affordable, and labor is minimal for an experienced mechanic.
| Part or Service | Estimated Cost |
|---|---|
| New Aftermarket Part | $125 - $130 |
| New OEM Part | $135 - $200 |
| Shop Labor | $60 - $140 |
| Total (Shop Repair) | $185 - $340 |
Frequently Asked Questions
Where is the oil pressure switch on a 2015-2020 Honda Fit?
The oil pressure switch is typically screwed into the engine block or cylinder head. On many Honda engines, it is located near the oil filter or as part of the VTEC spool valve assembly. 🎬 Watch: Troubleshooting VTEC oil pressure switch codes P2646 and P2647. For easier access, you may need to remove the driver's side front wheel and a plastic splash guard.
Is replacing the oil pressure switch a DIY job?
Yes, for someone with basic mechanical skills and tools, this is a very feasible DIY repair. It involves disconnecting the electrical connector, unscrewing the old switch, and installing the new one. Make sure the engine is cool and you have a proper-sized wrench or socket.
🎬 See this walkthrough for replacing the oil pressure switch.Are there any recalls for the oil pressure switch on this Honda Fit?
No, as of early 2026, there are no specific recalls or technical service bulletins (TSBs) from Honda or the NHTSA for a failing engine oil pressure switch on the 2015-2020 Honda Fit model years.
What happens if I ignore a bad oil pressure switch?
Ignoring a faulty switch means you won't have a reliable warning if your engine ever does have a real oil pressure problem. A constantly lit warning light can also hide a new, more serious issue. Since the part is inexpensive and easy to replace, it's best to fix it promptly.
Helpful Videos
Technical Specifications
OEM Part Numbers: 37250-R1A-A01
Connector: 3-Pin Female Connector
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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