Circuit Description
The automatic transmission fluid (ATF) temperature sensor converts the fluid temperature into a resistance value which is input into the engine control module (ECM).
This DTC indicates that there is a problem with output from the ATF temperature sensor and that the sensor itself is defective. The ATF temperature sensor converts the ATF temperature to an electrical resistance value. Based on the resistance, the ECM determines the ATF temperature, detects open or short circuits of the ATF temperature circuit, and detects faults in the ATF temperature sensor.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC P0711 Transmission Fluid Temperature Sensor "A" Performance
Conditions for Running the DTC
The engine is running.
Conditions for Setting the DTC
The ECM will set the DTC if the following conditions are present:
| • | Condition A, the ECM checks for the following conditions: |
| - | 17 minutes or more after engine is started and after 9 km (5.6 miles) or more of driving, engine coolant temperature (ECT) is -15°C (+5°F) or more. |
| - | After starting engine and certain period of time has elapsed, ECT and intake air temperature (IAT) are -10°C (+14°F) or more. |
| - | If conditions are met, ECM then checks if ATF temperature is less than 20°C (68°F). If so, ECM interprets this as a fault and illuminates the MIL. |
| • | Condition B, the ECM checks for the following conditions: |
| - | ECT is 60°C (140°F) or more. |
| - | After starting engine and certain period of time has elapsed, ECT is less than 35°C (95°F). |
| - | If conditions are met, ECM then checks if ATF temperature is less than 100°C (212°F) or more. If so, ECM interprets this as a fault and illuminates the MIL. |
Action Taken When the DTC Sets
| • | DTC P0711 is a type C DTC. |
| • | The malfunction indicator lamp (MIL) illuminates the first time the diagnostic runs with the fault active. |
Conditions for Clearing the MIL/DTC
The DTC will clear when conditions for setting the DTC have been repaired.
Step | Action | Values | Yes | No |
|---|---|---|---|---|
Schematic Reference: Automatic Transmission Controls Schematics Connector End View Reference: Component Connector End Views | ||||
1 | Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | |
2 |
Does the ATF temperature display between -40°C (-40°F) or above 150°C (302°F)? | -- | Refer to Testing for Intermittent Conditions and Poor Connections | Go to Step 3 |
3 | Check the transmission fluid level. Is fluid level within range? | -- | Go to Step 5 | Go to Step 4 |
4 | Add transmission fluid. Have you completed action? | -- | Go to Step 6 | -- |
5 | Replace ATF sensor. Did you complete the replacement? | -- | Go to Step 6 | -- |
6 |
Does the DTC reset? | -- | Go to Step 2 | System OK |
