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Home >> Cadillac >> 2004 >> CTS Base, 3.2 N >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 28 (Automatic Transmission - 5L40-E (DTC P0115 To P0742)) >> Automatic Transaxle Diagnosis >> DTC P0711 >> Test Description

Test Description

WARNING: This page is about a different variant/trim than selected.

The numbers below refer to the step numbers on the diagnostic table.

  1. 5:  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.
  2. 6:  This step determines if the TCM or the TFT, sensor is causing a steady, unchanging TFT, reading.
DTC P0711

Step Action Value(s) Yes No
1 Did you perform the Diagnostic System Check - Automatic Transmission? - Go to Step 2  Go to Diagnostic System Check - Automatic Transmission
2 Perform the Transmission Fluid Checking Procedure. Refer to Transmission Fluid Checking Procedure .
Did you perform the Transmission Fluid Checking Procedure?		 - Go to Step 3  Go to Transmission Fluid Checking Procedure
3
  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
    3. IMPORTANT:
    • Before clearing the DTC, use the scan tool in order to record the ECM and the TCM Failure Records. Using the Clear Info function erases the Failure Records from the ECM and TCM.
    • Using the Clear Info function erases stored DTCs in both the ECM and TCM.
  3. Record the DTC Failure Records.
  4. Clear the DTC.
  5. Select Trans. Fluid Temp. on the scan tool.
  6. Drive the vehicle and observe the scan tool for either of the following conditions:
    • The TFT does not change greater than 2°C (4°F) in 1 minute and 40 seconds since startup.
    • The TFT changes by 20°C (36°F) or greater in 0.250 second, 14 times within 7 seconds, unrealistic change.
Did either of the conditions occur?		 - Go to Step 4  Go to Intermittent Conditions in Engine Controls - 2.6L and 3.2L or Intermittent Conditions in Engine Controls - 3.6L (LY7)
4 Did the scan tool display a condition in which the Trans. Fluid Temp. does not change by greater than the specified value in 1 minute and 40 seconds since startup? 2°C (4°F) Go to Step 6  Go to Step 5 
5 
  1. Turn OFF the ignition.
  2. Disconnect the AT inline 20-way connector. Additional DTCs may set.
  3. Install the J 45681  jumper harness on the engine side of the AT inline 20-way connector.
  4. Using the connector test adapter kit, connect a test light between the TFT sensor signal and low reference circuits of the J 45681  .
  5. Turn ON the ignition, with the engine OFF.
  6. While observing the scan tool display, move or wiggle the engine wiring harness from the TCM connector to the AT inline 20-way connector.
Does the Trans. Fluid Temp. change by greater than the specified value?		 20°C (36°F) Go to Step 7  Go to Step 8 
6 
  1. Turn OFF the ignition.
  2. Disconnect the AT inline 20-way connector.
  3. Turn ON the ignition, with the engine OFF.
Did the scan tool display a condition in which the Trans. Fluid Temp. does not change by greater than the specified value in 1 minute and 40 seconds since startup?		 2°C (4°F) Go to Step 9  Go to Step 8 
7
  1. Test the TFT signal circuit for an intermittent open or short condition between the TCM connector and the AT inline 20-way connector.
  2. Test the TFT low reference circuit for an intermittent open or short condition between the TCM connector and the AT inline 20-way connector.
Refer to Testing for Continuity and Testing for Short to Ground in Wiring Systems.Did you find and correct a condition?		 - Go to Step 10  Go to Step 8 
8 Replace the automatic transmission wiring harness. Refer to Transmission Internal Electrical Harness Replacement .
Did you complete the replacement?		 - Go to Step 10  -
9 Replace the TCM. Refer to Transmission Control Module (TCM) Replacement .
Did you complete the replacement?		 - Go to Step 10  -
10 Perform the following procedure in order to verify the repair:
  1. Select DTC.
  2. Select Clear Info.
  3. Drive the vehicle and ensure the following conditions are met:
    • The TFT is -39°C to +149°C (-38°F to +300°F).
    • The TFT changes by greater than 2°C (4°F) since startup.
    • The TFT does not change by 20°C (36°F) or greater within 0.250 second.
  4. Select Specific DTC.
  5. Enter DTC P0711.

Has the test run and passed?		 - Go to Step 11  Go to Step 2 
11 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 in Engine Controls - 2.6L and 3.2L or Diagnostic Trouble Code (DTC) List in Engine Controls - 3.6L (LY7) System OK
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