Guide to the 2010-2015 Honda Civic Automatic Transmission Input Shaft Speed Sensor
If your Civic's 'D' light is flashing and it's shifting hard, this sensor is a likely cause.
- A flashing 'D' light combined with a P0717 code is the clearest sign of a bad input shaft speed sensor.
- This is a very common failure part, but it is relatively easy and inexpensive to fix.
- Replacement is DIY-friendly, requiring only basic tools and the removal of the airbox for access.
- Owners of 2014-2015 models should check for an unrelated but important CVT software recall (JU2).
Is Your Civic's Transmission Acting Up? Common Failure Symptoms
A failing input shaft speed sensor on a 2010-2015 Honda Civic will cause noticeable problems. The car's computer loses a key piece of information it needs to shift gears correctly. Look for these specific signs:
- Flashing 'D' Light: The most common symptom reported by Honda owners is a green 'D' light on the dashboard that flashes while driving. 🎬 Watch this video to understand why your D light is flashing. This is the car's way of telling you there is a fault in the transmission system.
- Check Engine Light: The sensor failure will trigger the Check Engine Light. When scanned, it will almost always show the code P0717 - Input/Turbine Speed Sensor 'A' Circuit No Signal.
- Harsh or Erratic Shifting: Your Civic may shift very hard, especially when going into Drive or Reverse. It might also delay shifts or feel like it's stuck in one gear, a condition known as "limp mode."
- Cruise Control Inoperable: The cruise control system will not work because it needs a reliable speed signal from the transmission sensors.
Important Recall for 2014-2015 Models
Honda issued a recall for some 2014-2015 Civics equipped with the Continuously Variable Transmission (CVT). The issue involves the transmission's software, which could damage a pulley shaft and cause a loss of acceleration or the front wheels to lock up. While not a sensor failure, the symptoms can be similar. Check with a Honda dealer or the NHTSA website using your VIN to see if your car is affected by recall JU2.
Choosing the Right Aftermarket Sensor
For a critical electronic part like this, you don't want to choose the cheapest option. However, a quality aftermarket sensor can perform just as well as the original part for less money. Here’s a breakdown of available brands:
- Tier 1 - Excellent Quality (NGK/NTK): NGK (under their NTK brand for sensors) is a well-respected OEM supplier for many car manufacturers. Choosing NTK is the closest you can get to original equipment quality and is highly recommended for reliability.
- Tier 2 - Good Quality (Standard Ignition): Standard Motor Products (SMP) is a major aftermarket manufacturer that produces reliable parts. They are a solid choice and a dependable alternative to the OEM part.
- Tier 3 - Standard Quality (Beck Arnley): Beck Arnley often sources parts from various manufacturers, including original equipment suppliers. While they can be a good value, their consistency can vary. They are a functional replacement but may not have the same long-term durability as an NTK sensor.
Cost of Replacing the Input Shaft Speed Sensor
The cost to fix this issue is reasonable, especially if you can do it yourself. The sensor itself is not expensive, and labor is minimal.
| Part or Service | Estimated Cost |
|---|---|
| New Aftermarket Sensor | $34 - $153 |
| New OEM Sensor | $40 - $70 |
| Shop Labor | $100 - $150 |
| Total Professional Repair | $134 - $223 |
DIY Replacement is Possible
Replacing this sensor is a job most home mechanics can handle. The sensor is located on the back of the transmission and is held in by a single 10mm bolt. The main challenge is access, which requires removing the air filter box and intake tube. Once the airbox is out of the way, you can unplug the connector, remove the bolt, and swap the sensor.
🎬 Follow this step-by-step guide to replace both transmission sensors yourself.Frequently Asked Questions
Where is the input speed sensor located on a 2010-2015 Civic?
It is on the top/back of the automatic transmission housing. You will need to remove the plastic air filter assembly to see and reach it. It is near the output speed sensor, so be sure you are replacing the correct one.
What's the difference between the input and output speed sensors?
Your Civic has two main transmission speed sensors. The input sensor (this part) measures the speed of the shaft coming from the engine. The output sensor measures the speed of the shaft going to the wheels. The computer compares both signals to ensure the transmission is in the right gear. A bad output sensor is more likely to cause a faulty speedometer.
What does the code P0717 mean?
P0717 specifically means the Powertrain Control Module (PCM) is not receiving a signal from the input/turbine speed sensor. This could be due to a failed sensor, a wiring problem, or a bad connection. In most cases, the sensor itself is the culprit.
Do I need to use genuine Honda transmission fluid?
Yes. Honda automatic transmissions are sensitive to fluid type. Always use genuine Honda ATF DW-1 fluid. Using the wrong fluid can cause shifting problems and long-term damage. While not directly related to the sensor, it's a critical point of maintenance.
Helpful Videos
Technical Specifications
OEM Part Numbers: 28810-RPC-013 28810-RPC-003
This sensor is for the automatic transmission input (mainshaft). For 2010-2013 models with the 5-speed automatic, the common part is 28810-RPC-013. The 2014-2015 models with a CVT may use a different sensor (like 28810-RJ2-003), so verifying by VIN is recommended.
We Have This Part in Stock
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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