P0715 – Input/Turbine Speed Sensor Circuit Malfunction

Meaning:

The actual transmission input speed does not match the desired input speed.

Main Symptoms:

The Check Engine Light is one of main symptoms of the P0715
When the Check Engine Light comes on, it might mean the P0715 code

Possible Causes:

  • Defective input speed sensor
  • Defective output speed sensor
  • A wiring problem in input/output speed sensor circuit
  • Loose or burnt connector in transmission circuit
  • Defective or improperly programmed PCM

Diagnostic Steps:

  • Visually inspect all wiring and connectors for loose, burnt, open or broken connections
  • Using a scanner, pull all codes and freeze frame data to see which sensor is malfunctioning (input/output)
  • Replace sensor if necessary

Read More: Top 10 Transmission Problems and How to Fix Them