Transmission Fluid Temperature Sensor A Circuit Range/Performance
The P0711 code indicates that the transmission control module (TCM) has detected a problem with the transmission fluid temperature (TFT) sensor circuit. This sensor monitors the temperature of the transmission fluid and sends a signal to the TCM. The code is set when the sensor reading is outside the expected range or the signal is erratic, often due to a faulty sensor, wiring issues, or low fluid level. This can affect shift quality and transmission operation.
01. Most Common Causes
- Faulty transmission fluid temperature sensor
- Damaged or corroded wiring/connectors in the sensor circuit
- Low or contaminated transmission fluid
- Internal transmission problems
02. Symptoms You Will Notice
- Check Engine Light illuminated
- Harsh or delayed shifting
- Transmission slipping or overheating
- Poor fuel economy
03. Step-by-Step Diagnosis
Step 1: Scan for additional codes and check freeze frame data.
Step 2: Inspect transmission fluid level and condition; top off or replace if necessary.
Step 3: Visually check the TFT sensor wiring and connector for damage or corrosion.
Step 4: Test the TFT sensor resistance and compare to manufacturer specifications.
Step 5: If sensor and wiring are okay, check for internal transmission issues.
04. Commonly Affected Makes
05. Frequently Asked Questions
Is it safe to drive with this code?▼
It is not recommended to drive long distances as it can cause transmission damage due to improper shifting or overheating.
How much does it cost to fix?▼
The cost typically ranges from $50 to $150 for sensor replacement, but can be higher if wiring repairs or transmission service is needed.