P0716 means the powertrain control module (PCM) or transmission control module (TCM) has detected an implausible, erratic, or out-of-range signal from the input/turbine shaft speed sensor. This sensor reports the rotational speed of the transmission input shaft, and the module compares it to engine and vehicle speed to manage shifting. A mismatch or unstable signal can trigger the code and affect transmission operation.
The sensor itself can drift out of range, develop an internal open or short, or produce an intermittent signal as it wears, which is the most common reason for P0716.
Corroded, loose, bent, or moisture-contaminated pins, plus chafed or shorted wires between the sensor and the control module, can distort or interrupt the signal.
A cracked, chipped, loose, or debris-coated tone ring can create missing or erratic pulses that the module interprets as a range or performance problem.
Worn clutches, bands, or drums can make the input turbine speed deviate from what the module expects, causing a performance-related fault even when the sensor circuit is intact.
A rare internal fault in the control module can misread a good sensor signal; this should be considered only after the sensor, wiring, and mechanical causes have been ruled out.
You can usually drive a short distance to a repair facility, but the transmission may shift harshly or enter limp mode. Continued driving can increase wear or cause further damage, so diagnosis should be done promptly.
Only if testing points to it. A failed sensor is common, but corroded connectors and damaged wiring cause many P0716 cases, so inspect those before replacing parts.
Usually no. PCM or TCM failure is an uncommon cause of this code. It should be considered only after the sensor, wiring, reluctor ring, and internal mechanical causes have been ruled out.
The most likely reasons are an overlooked wiring or connector problem, a damaged reluctor ring, or an internal mechanical fault that changes turbine speed relative to engine speed.