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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1861 (Automatic Transmission - 5AT - DTC P0218 To DTC P0761) >> DTC P0717 >> Diagnostic Aids

Diagnostic Aids

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0717

Step Action Values Yes No
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. IMPORTANT: Before clearing the DTCs, use the scan tool in order to record the Freeze Frame and Failure Records for reference. The Clear Info function will erase the data.
  4. Record the DTC Freeze Frame and Failure Records.
  5. Clear the DTCs.
  6. Start and idle the engine.
  7. Monitor the Transmission ISS parameter on the scan tool.
Does the scan tool indicate an increase in the Transmission ISS parameter while the engine speed increases?
- Go to Diagnostic System Check - Vehicle Go to Step 3 
3
  1. Turn OFF the ignition.
  2. Disconnect the AT ISS.
  3. Turn ON the ignition with the engine OFF.
  4. Using the DMM, measure the voltage of the AT ISS 5 volt reference circuit to ground.
Does the voltage measure near the specified value?
5 V Go to Step 4  Go to Step 7 
4 Measure the voltage from the AT ISS 5 volt reference circuit to the AT ISS low reference circuit.
Does the voltage measure near the specified value?
5 V Go to Step 5  Go to Step 8 
5 Measure the voltage from the ISS high signal circuit to the ISS low reference circuit.
Does the voltage measure near the specified value?
5 V Go to Step 9  Go to Step 6 
6 Test the AT ISS high signal circuit for the following conditions:
  • An open
  • A short to ground
  • A short to voltage

Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
- Go to Step 12  Go to Step 11 
7
IMPORTANT: The condition that affects this circuit may exist in other connecting branches of the circuit. Refer to Power Distribution Schematics for complete circuit distribution.
Test the AT ISS 5 volt reference circuit for the following conditions:
  • An open
  • A short to ground
  • A short to voltage
Refer to Circuit Testing and Wiring Repairs .Did you find and correct the condition?
- Go to Step 12  Go to Step 11 
8 Test the AT ISS low reference circuit for an open or a short to voltage. Refer to Circuit Testing and Wiring Repairs .
Did you find and correct the condition?
- Go to Step 12  Go to Step 11 
9
  1. Remove the AT ISS sensor. Refer to Input Speed Sensor Replacement .
  2. Inspect the AT ISS and the transmission for the following conditions:
    • An incorrect AT ISS
    • A damaged AT ISS
    • Incorrect AT ISS installation
    • AT ISS rotor damage
  3. Repair any of the above conditions as necessary.
Did you find and correct the condition?
- Go to Step 12  Go to Step 10 
10 Replace the AT ISS. Refer to Input Speed Sensor Replacement .
Did you complete the replacement?
- Go to Step 12  -
11 Replace the PCM. Refer to Control Module References for replacement, setup, and programming.
Did you complete the replacement?
- Go to Step 12  -
12 Perform the following procedure In order to verify the repair:
  1. Select DTC.
  2. Select Clear Info.
  3. Drive the vehicle.
  4. Ensure the vehicle speed is greater than 20 km/h (13 mph) for at least 10 seconds.
  5. Select specific DTC.
  6. Enter DTC P0717.

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 System OK