What this code means
P0716 may mean the PCM is seeing an input or turbine speed sensor signal that does not match expected CVT speed behavior.
What the vehicle may do
- The vehicle may show abnormal CVT operation or warning indicators.
- The code can also be found during a scan even when the complaint is intermittent.
Possible fault areas
- A possible sensor signal circuit issue may be involved.
- PCM software or PCM signal processing can be part of the diagnostic path.
- This code is often approached as an electrical circuit concern rather than an internal mechanical transmission concern.
Diagnostic path
Opening context
On this 2010 to 2015 Honda Civic with the 1.8 gas engine and CVT, P0716 is for the input or turbine speed sensor A circuit range or performance. In plain terms, the PCM is seeing a turbine-speed signal that may not line up with what it expects. The driver may notice CVT behavior that feels abnormal, or the code may show up during a scan without a clear complaint. Broadly, this can involve the sensor signal circuit, the sensor input compared against pulley speed data, PCM software, or the PCM itself. Before getting deep into it, start with the basic system checks and follow a structured diagnostic approach. Also keep the direction of this code in mind: this diagnostic path treats P0716 as an electrical circuit problem, not as an internal mechanical transmission problem.
Reproduce the code first
Start by verifying the problem. Turn the ignition switch to ON, or select ON mode with the engine start stop button. Clear the DTC with the HDS. Raise the vehicle on a lift, make sure it is securely supported, and make sure all four wheels can rotate freely. Start the engine and turn VSA off with the VSA OFF button. Then run the vehicle at speeds over 19 mph (30 km/h) for at least 30 seconds. Slow down, stop the wheels, and check the HDS for pending or confirmed codes. If P0716 comes back, the failure is duplicated and you move into the sensor signal check. If it does not come back, treat it as an intermittent failure. The system is OK at that moment, and if captured data is available, try to reproduce the same operating conditions instead of guessing.
Compare the two speed signals
With the shift lever in D, rotate the front wheels and watch the HDS data list. Compare Torque Converter Turbine Speed to Input Shaft, Drive Pulley Speed, in rpm. The decision point is simple: are those speeds about the same or not? If they are about the same, the torque converter turbine speed sensor is considered OK on this path. At that point, update the PCM if it does not have the latest software, or substitute a known-good PCM, then recheck. If P0716 goes away after a PCM update, the troubleshooting is complete. If P0716 goes away with a substituted PCM, replace the original PCM. If the two speeds are not about the same, replace the torque converter turbine speed sensor.
Takeaway
The key on P0716 is not to chase a mechanical CVT failure. First duplicate the code under the required operating conditions, then compare the turbine speed signal against the input shaft drive pulley speed. That split tells you whether the path stays with PCM software or PCM confirmation, or goes to the torque converter turbine speed sensor. For more diagnostic training, visit stepdiagnostics.com.
Final check
Duplicate the code first, then use the scan data speed comparison to decide the next diagnostic direction.
For more guided automotive diagnostics, visit STEP Diagnostics.
