Circuit Description
The powertrain control module (PCM) monitors the following conditions:
| • | The transmission input speed |
| • | The engine speed |
| • | The vehicle speed |
| • | The gear position |
| • | The output speed sensor |
Conditions for Setting the DTC
The PCM compares the output shaft speed with the input/turbine speed sensor. When the output shaft speed is higher than the calculated value and the input shaft speed is 300 RPM or less while the vehicle is running and in the Drive (D) position, the PCM will determine that there is a malfunction of the input/turbine speed sensor.
One driving cycle detection logic
Action Taken When the DTC Sets
| • | DTC P0717 stores. |
| • | The malfunction indicator lamp (MIL) turns ON. |
Diagnostic Aids
Inspect for the following conditions:
| • | The Input/Turbine speed sensor |
| • | The PCM and related wiring |
If DTC P0717 cannot duplicate, the information included in the Freeze Frame data may be useful in determining the vehicle operating conditions when the DTC set.
DTC Confirmation Procedure
- Turn the ignition switch to the LOCK position.
- Connect the scan tool to the data link connector (DLC).
- Turn the ignition switch ON.
- Use the scan tool in order to clear the following items:
- Start the engine.
- Warm the engine up to normal operating conditions.
- Turn O/D switch to the ON position.
- Operate the vehicle under all the following conditions:
- Stop the vehicle.
- Use the scan tool in order to test for a pending DTC.
| • | DTC P0717 |
| • | Any pending DTCs |
| • | Keep the vehicle speed approximately at or slightly above 10 km/h (7 mph) with 1st gear held in Drive range for 1 second or more. |
| • | Increase the vehicle speed to approximately 20 km/h (13 mph) with 2nd gear held in Drive range for 2 seconds or more. |
| • | Increase the vehicle speed to approximately 30 km/h (20 mph) with 3rd gear held in Drive range for 2 seconds or more. |
Test Description
The numbers below refer to the step numbers on the diagnostic table.
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The Diagnostic System Check - Vehicle prompts the technician to complete some basic checks and store the freeze frame data on the scan tool if applicable. The scan tool creates an electronic copy of the data taken when the fault occurred. The information then stores in the scan tool for later reference.
-
This step tests for input sensor resistance.
-
This step checks for intermittents.
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
Schematic Reference: Automatic Transmission Controls Schematics | ||||
Did you perform the Diagnostic System Check - Vehicle? | -- | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information | |
2 |
Does the scan tool display any other DTCs in addition to DTC P0717? | -- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | Go to Step 3 |
Is the resistance within the specified range? | 560-680 ohms | Go to Step 6 | Go to Step 4 | |
4 | Inspect all of the electrical connections for poor terminal contact or a poor connection. Does poor terminal contact or poor connections exist? | -- | Go to Step 10 | Go to Step 5 |
5 |
Is the resistance within the specified range? | 680-560 ohms @ 20°C (68°F) | Go to Step 6 | Go to Step 11 |
6 |
Does DTC P0717 reset? | -- | Go to Step 1 | Go to Step 7 |
7 | Visually inspect the sensor for damage or foreign material. Is damage or foreign material present? | -- | Go to Step 10 | Go to Step 8 |
Refer to Diagnostic Aids for a possible intermittent condition. If OK, replace the PCM. Refer to Powertrain Control Module Programming and Setup in Programming and Setup. Is the procedure complete? | -- | Go to Step 9 | -- | |
9 |
Does the scan tool display any DTCs? | -- | Go to Diagnostic Trouble Code (DTC) List - Vehicle in Vehicle DTC Information | System OK |
10 | Repair as necessary. Is the system operating properly? | -- | System OK | Go to Step 2 |
11 | Replace the input speed sensor. Is the system operating properly? | -- | System OK | Go to Step 2 |
