DTC P0711 2.2L
Circuit Description
The automatic transmission fluid temperature (TFT) sensor is a negative coefficient thermistor. When the transmission fluid is cold, the sensor resistance is high. As the transmission fluid warms, the sensor resistance decreases. This diagnostic monitors the TFT circuit. The circuit may be functional, but not in the normal operating range. This diagnostic indicates stuck, erratic, intermittent, or skewed values, indicating poor system performance. The TFT range is -40 to +151°C (-40 to +305°F).
When the powertrain control module (PCM) detects an intermittent voltage or no voltage change in the TFT sensor circuit, then DTC P0711 sets. DTC P0711 is a type C DTC.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0711 Transmission Fluid Temperature (TFT) Sensor Performance
Conditions for Running the DTC
| • | No VSS DTCs P0502 or P0503. |
| • | No ISS DTCs P0716 or P0717. |
| • | The engine run time is greater than 5 seconds. |
| • | The engine coolant temperature (ECT) is greater than 70°C (158°F). |
| • | The ECT has changed by greater than 55°C (99°F) since start-up. |
| • | The TFT is -38 to +149°C (-36 to +300°F) for 10 seconds. |
| • | The vehicle speed is greater than 8 km/h (5 mph) for 15 minutes cumulatively. |
| • | The torque converter clutch (TCC) slip is greater than 120 RPM for 6 minutes and 49 seconds cumulatively. |
Conditions for Setting the DTC
One of the following conditions occurs:
Condition 1
The change in TFT is less than 2.25°C (4°F) since start-up for 80 seconds when the TFT is -40°C to +21°C (-40°F to +70°F) at start-up.
Condition 2
The change in TFT is less than 2.25°C (4°F) since start-up for 80 seconds when the TFT is 129°C to 143°C (264°F to 289°F) at start-up.
Action Taken When the DTC Sets
| • | The PCM does not illuminate the malfunction indicator lamp (MIL). |
| • | The PCM freezes transmission adaptive functions. |
| • | The PCM calculates a default transmission fluid temperature based on engine coolant temperature, manifold air temperature, and engine run time. |
| • | The PCM records the operating conditions when the Conditions for setting the DTC are met. The PCM stores this information as Failure Records. |
| • | The PCM stores DTC P0711 in PCM history. |
Conditions for Clearing the DTC
| • | A scan tool can clear the DTC. |
| • | The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission related diagnostic fault occurring. |
| • | The PCM cancels the DTC default actions when the fault no longer exists and the DTC passes. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
This step tests for an intermittent short or open condition in the engine wiring harness. The test light is used as a resistor in the circuit.
-
This step determines if the PCM or the TFT sensor is causing a steady, unchanging TFT reading.
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | ||||
2 | Did you perform the Transmission Fluid Checking Procedure? | -- | Go to Step 3 | Go to Transmission Fluid Check | ||||
3 |
Important: Before clearing the DTC, use the scan tool in order to record the Failure Records. Using the Clear Info function erases the Failure Records from the PCM.
Did either of the fail conditions occur? | -- | Go to Step 4 | Go to Intermittent Conditions in Engine Controls - 2.2L | ||||
4 | Did the scan tool display a condition in which the TFT does not change by greater than the specified value in 20 seconds since startup? | 2.25°C (4°F) | Go to Step 6 | Go to Step 5 | ||||
Refer to Automatic Transmission Inline 20-Way Connector End View . Does the TFT change by greater than the specified value? | 20°C (36°F) | Go to Step 7 | Go to Step 8 | |||||
Did the scan tool display a condition in which the TFT does not change by greater than the specified value in 20 seconds since startup? | 2.25°C (4°F) | Go to Step 11 | Go to Step 10 | |||||
7 |
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | -- | Go to Step 12 | Go to Step 11 | ||||
8 |
Refer to Circuit Testing in Wiring Systems. Did you find a condition? | -- | Go to Step 9 | Go to Step 10 | ||||
9 | Replace the automatic transmission wiring harness. Refer to Wiring Harness Replacement . Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
10 | Replace the TFT sensor. The TFT sensor is part of the TFP manual valve position switch. Refer to Transmission Fluid Pressure Manual Valve Position Switch Replacement . Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
11 | Replace the PCM. Refer to Control Module References in Computer/Integrating Systems for replacement, set-up, and programming. Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
12 | Perform the following procedure in order to verify the repair:
Has the test run and passed? | -- | Go to Step 13 | Go to Step 2 | ||||
13 | With the scan tool, observe the stored information, capture info and DTC info. Does the scan tool display any DTCs that you have not diagnosed? | -- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | System OK |
DTC P0711 3.5L
Circuit Description
The automatic transmission fluid temperature (TFT) sensor is a negative coefficient thermistor. When the transmission fluid is cold, the sensor resistance is high. As the transmission fluid warms, the sensor resistance decreases. This diagnostic monitors the TFT circuit. The circuit may be functional, but not in the normal operating range. This diagnostic indicates stuck, erratic, intermittent, or skewed values, indicating poor system performance. The TFT range is -40 to +151°C (-40 to +305°F).
When the powertrain control module (PCM) detects an intermittent voltage or no voltage change in the TFT sensor circuit, then DTC P0711 sets. DTC P0711 is a type C DTC.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0711 Transmission Fluid Temperature (TFT) Sensor Performance
Conditions for Running the DTC
| • | No ECT DTCs P0117 or P0118. |
| • | No VSS DTCs P0502 or P0503. |
| • | No ISS DTCs P0716 or P0717. |
| • | The engine run time is greater than 5 seconds. |
| • | The engine coolant temperature (ECT) is 70°C (158°F) or more. |
| • | The ECT has changed by greater than 55°C (99°F) since start-up. |
| • | The TFT at start-up is -40 to +21°C (-40 to +70°F). |
| • | The vehicle speed is 8 km/h (5 mph) or more for 6 minutes cumulatively. |
| • | The torque converter clutch (TCC) slip is greater than 120 RPM for 6 minutes cumulatively. |
Conditions for Setting the DTC
One of the following conditions occurs:
Condition 1
The change in TFT is less than 2.25°C (4°F) since start-up for 1 minute and 20 seconds.
Condition 2
The change in TFT is greater than 20°C (36°F) within 100 milliseconds; 15 times within 7 seconds.
Action Taken When the DTC Sets
| • | The PCM does not illuminate the malfunction indicator lamp (MIL). |
| • | The PCM freezes transmission adaptive functions. |
| • | The PCM calculates a default transmission fluid temperature based on engine coolant temperature, manifold air temperature, and engine run time. |
| • | The PCM records the operating conditions when the Conditions for setting the DTC are met. The PCM stores this information as Failure Records. |
| • | The PCM stores DTC P0711 in PCM history. |
Conditions for Clearing the DTC
| • | A scan tool can clear the DTC. |
| • | The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission related diagnostic fault occurring. |
| • | The PCM cancels the DTC default actions when the fault no longer exists and the DTC passes. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
-
This step tests for an intermittent short or open condition in the engine wiring harness. The test light is used as a resistor in the circuit.
-
This step determines if the PCM or the TFT sensor is causing a steady, unchanging TFT reading.
Step | Action | Value(s) | Yes | No | ||||
|---|---|---|---|---|---|---|---|---|
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | ||||
2 | Did you perform the Transmission Fluid Checking Procedure? | -- | Go to Step 3 | Go to Transmission Fluid Check | ||||
3 |
Important: Before clearing the DTC, use the scan tool in order to record the Failure Records. Using the Clear Info function erases the Failure Records from the PCM.
Did either of the fail conditions occur? | -- | Go to Step 4 | Go to Intermittent Conditions in Engine Controls - 3.5L | ||||
4 | Did the scan tool display a condition in which the TFT does not change by greater than the specified value in 1 minute and 20 seconds since startup? | 2.25°C (4°F) | Go to Step 6 | Go to Step 5 | ||||
Refer to Automatic Transmission Inline 20-Way Connector End View . Does the TFT change by greater than the specified value? | 20°C (36°F) | Go to Step 7 | Go to Step 8 | |||||
Did the scan tool display a condition in which the TFT does not change by greater than the specified value in 1 minute and 20 seconds since startup? | 2.25°C (4°F) | Go to Step 11 | Go to Step 10 | |||||
7 |
Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct a condition? | -- | Go to Step 12 | Go to Step 11 | ||||
8 |
Refer to Circuit Testing in Wiring Systems. Did you find a condition? | -- | Go to Step 9 | Go to Step 10 | ||||
9 | Replace the automatic transmission wiring harness. Refer to Wiring Harness Replacement . Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
10 | Replace the TFT sensor. The TFT sensor is part of the TFP manual valve position switch. Refer to Transmission Fluid Pressure Manual Valve Position Switch Replacement . Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
11 | Replace the PCM. Refer to Control Module References in Computer/Integrating Systems for replacement, set-up, and programming. Did you complete the replacement? | -- | Go to Step 12 | -- | ||||
12 | Perform the following procedure in order to verify the repair:
Has the test run and passed? | -- | Go to Step 13 | Go to Step 2 | ||||
13 | With the scan tool, observe the stored information, capture info and DTC info. Does the scan tool display any DTCs that you have not diagnosed? | -- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | System OK |
