Diagnostic trouble code P1711 is a manufacturer-specific powertrain fault code. Because it is manufacturer-specific, its exact definition depends entirely on the vehicle make, model, and application.
Exact vehicle application must be verified before diagnosis. The code identifies a detected condition in a specific subsystem, but further testing is required to identify the root cause.
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Key Takeaways
- P1711 is a manufacturer-specific code, meaning its definition varies between automakers like Ford, General Motors, and Nissan.
- On Ford applications, it typically indicates a Transmission Fluid Temperature (TFT) sensor circuit out of self-test range fault.
- On certain GM applications with Allison transmissions, it indicates a Pressure Control Solenoid E stuck fault.
- On some Nissan applications, it points to an automatic transmission fluid temperature sensor malfunction.
- Diagnosis requires verifying the exact factory definition and testing the relevant sensors, solenoids, or wiring.
P1711 Code Description and Implications
Because P1711 is manufacturer-specific, there is no single universal definition. This error code identifies a detected condition, but the exact monitored system depends on the vehicle make and model.
Some Ford applications: P1711 indicates a “Transmission Fluid Temperature (TFT) Sensor Circuit Out Of Self-Test Range” fault, meaning the module detected an unexpected signal during its self-test.
Certain General Motors applications: On vehicles equipped with Allison transmissions, P1711 indicates a “Pressure Control Solenoid E Stuck” fault, pointing to a hydraulic control issue.
Some Nissan and Infiniti applications: P1711 indicates an automatic transmission fluid temperature sensor malfunction, affecting the module’s ability to regulate hydraulic pressure and shift timing.
Common Causes of the P1711 Code
The underlying cause depends entirely on the verified factory definition for the specific vehicle application.
For Ford applications, possible causes include a failing TFT sensor (often integrated into the solenoid body), damaged wiring, or low/degraded transmission fluid.
For GM Allison applications, causes may involve a stuck pressure control solenoid E, debris in the valve body, or a cracked transmission adapter housing.
For Nissan applications, causes can include a failing A/T fluid temperature sensor, wiring issues, or overheated transmission fluid.
Symptoms Associated With P1711
Symptoms vary widely depending on the underlying system fault and the vehicle manufacturer.
On applications with a TFT sensor fault, symptoms can include harsh shifting, torque converter clutch issues, or the transmission entering a limp mode.
On GM applications with a stuck solenoid E, symptoms may include delayed engagement, the transmission holding a specific gear, or a flashing transmission warning light.
Diagnosing the P1711 Trouble Code
Diagnosis must begin by confirming the exact factory definition for the specific make, model, and year.
For Ford TFT applications, technicians monitor the live transmission fluid temperature data using a scan tool, compare it to the engine coolant temperature at startup, and test the sensor circuit.
For GM Allison applications, technicians inspect the transmission adapter housing for cracks, check the solenoid resistance, and verify the valve body condition.
For Nissan applications, technicians test the A/T fluid temperature sensor resistance and inspect the wiring harness.
Repairing the P1711 Issue
Repairs must follow confirmed diagnosis based on the specific vehicle application.
If a TFT sensor or circuit fault is confirmed on a Ford application, the sensor (or the entire solenoid body assembly if integrated) must be replaced, or the wiring repaired.
If a stuck solenoid E is confirmed on a GM application, the solenoid or valve body must be serviced, and any cracked adapter housing must be replaced.
If an A/T fluid temperature sensor fault is confirmed on a Nissan application, the sensor must be replaced or the wiring repaired.
Cost Considerations for P1711 Repairs
Repair costs depend entirely on the confirmed root cause, component accessibility, and local labor rates.
Replacing a transmission fluid temperature sensor may require dropping the transmission pan and removing the valve body.
Conversely, replacing a cracked adapter housing or servicing a valve body on a heavy-duty transmission requires significant labor and specialized parts.
Prevention Strategies for Future Occurrences
Some electrical and hydraulic failures cannot be reliably prevented.
For transmission applications, regular fluid and filter changes help keep the valve body and solenoids clean, which protects the temperature sensors and hydraulic control circuits.
Inspecting exposed wiring harnesses for chafing or heat damage can help prevent intermittent circuit faults.
Troubleshooting Tips and Best Practices
Never assume P1711 is a universal temperature sensor code. Always verify the exact definition for the specific vehicle before purchasing parts.
Do not ignore related codes. A TFT sensor fault may appear alongside other transmission temperature or shift solenoid codes.
Check the transmission fluid level and condition first, as low or burnt fluid can cause erratic sensor readings and solenoid operation.
More OBD-II Codes
| P1709 | P1712 | P0700 | P0711 |
| P1708 | P1713 | P0712 | P0713 |
| P1707 | P1714 | P0740 | P0750 |
| P1704 | P1715 | P1284 | P1285 |
| P1703 | P1716 | P1283 | P1282 |
| P1702 | P1717 | P1281 | P1280 |
Frequently Asked Questions
Is P1711 a generic or manufacturer-specific code?
No. P1711 is a manufacturer-specific code. Its exact definition varies significantly between automakers, so the factory service information for the specific vehicle must be consulted.
Can I drive my car with a P1711 code?
It depends on the application. If P1711 indicates a stuck solenoid or a failed temperature sensor, the transmission may enter a limp mode, making driving unsafe.
Will disconnecting the battery clear the P1711 code?
Disconnecting the battery may temporarily clear the code, but it does not repair the underlying mechanical or electrical fault. The code will return once the module runs its self-test.
Can low transmission fluid cause a P1711 code?
On applications monitoring the transmission fluid temperature, low or degraded fluid can cause erratic sensor readings or prevent proper solenoid operation, triggering the fault code.
Does P1711 always mean the sensor is bad?
No. While a failed temperature sensor is a frequent cause on specific applications, the code can also indicate a stuck hydraulic solenoid, damaged wiring, or a cracked adapter housing.
What Should You Do About the P1711 Code?
Confirm the exact factory definition and diagnostic procedure for your specific vehicle application. Because P1711 is manufacturer-specific, identifying whether it relates to a temperature sensor or a pressure solenoid is mandatory.
Follow the applicable manufacturer diagnostic steps to test the relevant system and components. Once the root cause is confirmed, complete the necessary repairs and verify that the system operates correctly and the code does not return.
