What does Error Code P0715 mean?
Moderate Issue
DTC Code P0715 indicates a Transmission Input/Turbine Speed Sensor Circuit Malfunction, where the Input Speed Sensor fails to send the correct signal to the Transmission Control Module (TCM) and Engine Control Module (ECM), causing the ECM to set the OBDII code when the sensor is out of factory specifications.
What are the symptoms of Error Code P0715?
- Engine Light ON: The check engine light or service engine soon warning light is illuminated on the dashboard, indicating a potential issue with the transmission input/turbine speed sensor circuit.
- Transmission Issues: Drivers may experience erratic or harsh shifting, delayed gear engagement, or the transmission may enter 'limp' mode. These symptoms are linked to the malfunction of the transmission input/turbine speed sensor circuit, which affects the transmission's ability to properly manage gear shifts.
What causes Error Code P0715?
- The transmission speed sensor may be faulty, leading to incorrect readings and triggering the error code.
- An open or shorted harness in the transmission speed sensor can disrupt the signal, causing a malfunction.
- Poor electrical connections in the transmission speed sensor circuit can result in intermittent or no signal, leading to the error code.
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How to fix Error Code P0715?
- Verify DTC Code: Confirm the presence of DTC P0715 using an OBD-II scanner. Check for any additional related codes such as P0717, P0722, P0723, P0757, P0973, P0974, and P1870.
- Inspect Wiring and Connectors: Visually inspect the wiring and connectors related to the transmission input/turbine speed sensor for any signs of damage, corrosion, or disconnection.
- Test Sensor Voltage: Use a multimeter to measure the voltage at the sensor connector. Ensure the voltage is within the manufacturer's specified range.
- Check Sensor Resistance: Measure the resistance of the transmission input/turbine speed sensor. Compare the readings with the manufacturer's specifications to determine if the sensor is faulty.
- Inspect Transmission Fluid: Check the transmission fluid level and condition. Low or contaminated fluid can affect sensor operation.
- Perform Sensor Replacement: If the sensor is found to be faulty, replace it with a new one. Ensure all connections are secure and free from corrosion.
- Clear DTC Codes: After repairs, clear the DTC codes using the OBD-II scanner and perform a test drive to ensure the issue is resolved.