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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 30 (AUTOMATIC TRANSMISSION - ALLISON - DIAGNOSTICS (DTCs P0218-P0731)) >> 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. 4:  This step tests 5-volt reference.
  2. 6:  This step tests the TFT sensor and internal wiring harness.
  3. 7:  This step tests the resistance of the TFT sensor.
DTC P0711

Step Action Value Yes No
Schematic Reference: Automatic Transmission Controls Schematics
1 Did you perform the Diagnostic System Check - Vehicle? - Go to Step 2  Go to Diagnostic System Check - Vehicle
2 Measure the transmission fluid level. Refer to Transmission Fluid Checking Procedure .
Is the transmission fluid level correct?		 - Go to Step 3  Go to Transmission Fluid Checking Procedure
3
  1. Install the 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 Freeze Frame and Failure Records for reference. The Clear Info function will erase the data.
  3. Record the DTC Freeze Frame and Failure Records.
  4. Clear the DTC.
  5. Select TFT on the scan tool.
  6. Drive the vehicle and look for an unrealistic TFT reading.
Is the TFT reading at or below the specified value?		 1.5°C (2.7°F) Go to Step 4  Go to Diagnostic Aids
4
  1. Turn the ignition OFF.
  2. Disconnect the 80-way connector at the TCM.
  3. Install the J 39700  breakout box, the J-47275  breakout box adapter and the J 47275-1 magnetic overlay. See Special Tools .
  4. Turn ON the ignition, with the engine OFF.
  5. Using the DMM, measure voltage at connector terminal 54 and ground.
Is voltage within the specified value?		 5 V Go to Step 5  Go to Step 11 
5
  1. Turn the ignition OFF.
  2. Disconnect the TCM from the J 39700  . See Special Tools . Additional DTCs may set.
  3. Using the DMM, measure resistance at terminals 54 and 58.
Is the resistance within the specified value?		 3,490 ohm @ 20°C (68°F)
177.9 ohm @ 100°C (212°F)		 Go to Diagnostic Aids Go to Step 6 
6
  1. Disconnect the AT inline 20-way connector.
  2. Install the J 44152  jumper harness (20 pins) on the transmission side of the AT inline 20-way connector.
  3. Using the DMM and the J 35616  GM terminal test kit, measure the resistance at terminals G and H of the J 44152  . Refer to Automatic Transmission Inline Harness Connector End View .
Is the resistance within the specified value?		 3,490 ohm @ 20°C (68°F)
177.9 ohm @ 100°C (212°F)		 Go to Step 8  Go to Step 7 
7
  1. Remove the oil pan. Refer to Oil Pan Replacement .
  2. Disconnect the PSM from the internal wiring harness.
  3. Using the DMM, measure PSM resistance at terminals E and F.
Is resistance within the specified value?		 3,490 ohm @ 20°C (68°F)
177.9 ohm @ 100°C (212°F)		 Go to Step 9  Go to Step 10 
8 Test the PSM circuit between the TCM and AT inline 20-way connector for an open condition. Refer to Testing for Continuity .
Did you find and correct the condition?		 - Go to Step 12  -
9 Replace the AT internal wiring harness. Refer to Wiring Harness Replacement .
Did you complete the replacement?		 - Go to Step 12  -
10 Replace the PSM. Refer to Pressure Switch Manifold Replacement .
Did you complete the replacement?		 - Go to Step 12  -
11
IMPORTANT: In most cases, the TCM is not at fault. Investigate thoroughly before replacing the TCM.
Replace the TCM. 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. Clear the DTC.
  2. Using the scan tool, monitor the TFT.
  3. Drive the vehicle under normal operating conditions. Watch for significant changes in the TFT.
  4. Select Specific DTC.
  5. Enter DTC P0711.

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
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