P1716 Transmission Fluid Temp Sensor Out of Range
The P1716 code indicates that the Transmission Fluid Temperature (TFT) sensor has reported a value outside the expected range during the transmission control module's self-test. This sensor monitors the temperature of the automatic transmission fluid to enable adjustments in shift patterns, line pressure, and thermal protection. An out-of-range value can result from a faulty sensor, an electrical circuit issue, or an actual extreme temperature condition that is not being correctly recognized. In Ford vehicles, this code is typically associated with automatic transmissions where the TCM performs plausibility checks on the TFT sensor at startup or during normal operation. If the sensor's resistance or voltage indicates an impossible temperature or one inconsistent with other vehicle conditions, the DTC is set.
01. Most Common Causes
- Faulty or internally worn TFT sensor
- Short circuit to ground or voltage in the TFT circuit wiring
- Corroded or loose harness connection at the sensor connector
- Abnormal electrical resistance in the sensor circuit
- Intermittent TCM failure (less common)
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or erratic shifting
- Transmission stuck in limp mode or failsafe mode
- Poor fuel economy
03. Step-by-Step Diagnosis
Scan for additional codes and record freeze frame data
Inspect the TFT sensor connector and wiring for damage, corrosion, or loose connections
Measure TFT sensor resistance and compare to manufacturer specifications at known fluid temperatures
Check for shorts or opens in the circuit between the sensor and TCM
If wiring and sensor check out, test TCM operation or check for software updates
1. Frequently Asked Questions
Is it safe to drive?▼
You can drive short distances, but continued driving may cause transmission damage due to improper shift patterns or overheating. It's best to diagnose and repair promptly.
How much does it cost to fix?▼
Repair costs typically range from $150 to $400, including parts and labor. A TFT sensor replacement is usually $50-$150, plus diagnostic time.