P0716
UniversalInput/Turbine Speed Sensor Circuit Range/Performance
Medium SeverityThis code indicates an issue with the input/turbine speed sensor circuit, meaning the transmission control module is receiving an implausible signal from the sensor. Drivers may experience erratic shifting, harsh engagement, or the transmission entering "limp mode," affecting driveability and fuel economy.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is safely supported on jack stands if working underneath the vehicle. Disconnect the battery before performing any electrical repairs to prevent accidental shorts or injury. Transmission fluid can be hot; use caution when checking or draining fluid.
Common Symptoms
- Check Engine Light illuminated
- Erratic or harsh transmission shifting
- Transmission slipping
- Transmission entering "limp mode" (limited gears)
- Poor fuel economy
- Speedometer or tachometer behaving erratically (less common for input/turbine)
- Transmission engagement delays
Common Causes
- Faulty input/turbine speed sensor
- Damaged or corroded wiring or connectors to the sensor
- Internal transmission mechanical issue affecting sensor readings
- Low or contaminated transmission fluid (less common but possible)
- Faulty Transmission Control Module (TCM) (rare)
Frequently reported on: Honda Accord 2003-2007, Ford Focus 2012-2016, Chrysler Town & Country 2008-2015, Nissan Altima 2007-2012, General Motors vehicles with 4L60E/4L80E transmissions
Diagnostic Steps
- Inspect the wiring harness and connectors leading to the input/turbine speed sensor for any signs of damage, fraying, corrosion, or loose connections. Repair as needed.
- Locate the input/turbine speed sensor on the transmission (often near the bell housing or accessible from underneath). Some vehicles may have both an input and turbine speed sensor.
- If accessible, remove the sensor and visually inspect it for physical damage or debris. Some sensors can be tested for resistance or signal output using a multimeter, referring to your vehicle's service manual for specifications.
- If the sensor is deemed faulty, replace the input/turbine speed sensor with a new, OEM-quality part. Ensure proper sealing if it requires disturbing transmission fluid.
- Clear the diagnostic trouble code (DTC) using an OBD-II scanner and perform a test drive to confirm the repair and ensure the code does not return.
👨🔧 When to Call a Professional
If symptoms include severe transmission shuddering, slipping, or refusal to shift gears, or if the DIY steps do not resolve the issue, professional diagnosis is highly recommended to prevent further, more costly transmission damage. Internal transmission problems can mimic sensor issues.
Commonly Asked Questions
Can I drive my car with a P0716 code?
It is not recommended to drive for extended periods with a P0716 code as it can lead to erratic transmission behavior, potential damage to the transmission, and unsafe driving conditions due to unpredictable shifting.
Where is the input/turbine speed sensor located?
The input/turbine speed sensor is typically located on the transmission casing. The exact location varies by vehicle, but it's often found near the bell housing or accessible from underneath the vehicle, sometimes requiring removal of other components.
What is the difference between an input speed sensor and an output speed sensor?
The input speed sensor measures the rotational speed of the transmission's input shaft from the engine, while the output speed sensor measures the speed of the transmission's output shaft, which directly correlates to vehicle speed.
Is replacing the input/turbine speed sensor a difficult DIY repair?
The difficulty level is typically 'Medium.' While the sensor itself may be easy to replace once located, accessing it can be challenging, sometimes requiring lifting the vehicle, draining transmission fluid, or removing other parts.
Will clearing the P0716 code fix the problem?
Clearing the code will only turn off the Check Engine Light temporarily. The underlying mechanical or electrical issue causing the P0716 code must be properly diagnosed and repaired for the code to stay off and for the transmission to function correctly.