P0714: Transmission Fluid Temperature Sensor A Circuit Intermittent — what it means, the affected system and what to check before replacing parts.
Meaning, symptoms, causes and checks
Transmission Fluid Temperature Sensor A Circuit Intermittent. Basic catalogue definition; diagnostic details have not yet been reviewed.
Affected system: Powertrain
Symptoms
- An engine or transmission warning may appear; shifts may change when the temperature signal cuts in and out.
- P0714 concerns an intermittent sensor signal, not proven rapid changes in the fluid's actual temperature.
Possible causes
- An unstable electrical connection, damaged harness or defective fluid-temperature sensor may interrupt the reading.
- The transmission controller's interpretation depends on the specific sensor circuit and wiring.
What to check
- Read P0714 together with other codes and freeze-frame data.
- Watch live transmission-fluid temperature for sudden implausible jumps; check the connector and harness for intermittent contact.
- Test the sensor circuit using manufacturer wiring information before replacing a component.
Also written as: P0714-00, P071400, PO714 (some scan tools add the fault-type byte, e.g. -00).