Test Description

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

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

3: This step attempts to repeat the condition that set the DTC.
5: This step determines if a condition exists with the TCM or TFT sensor.

DTC P0711 (3.6L)

Step	Action	Value(s)	Yes	No
1	Did you perform the Diagnostic System Check - Engine Controls?	-	Go to Step 2	Go to Diagnostic System Check - Engine Controls in Engine Controls - 3.6L
2	Did you perform the Transmission Fluid Checking Procedure?	-	Go to Step 3	Go to Transmission Fluid Checking Procedure
3	Install a scan tool. Turn ON the ignition with the engine OFF. IMPORTANT: Before clearing the DTCs, use the scan tool in order to record the Failure Records for reference. Using the Clear Info function will erase the stored Failure Records from the TCM. Record the Failure Records. Clear the DTC. Record the temperature at the start and end of the trip. Drive the vehicle for at least 7 minutes. Using a scan tool, observe Trans. Fluid Temp. for rapid fluctuations in temperature. Did you record the temperatures?	-	Go to Step 4	-
4	Did the transmission fluid temperature rise more than the specified value?	1.5°C (2.7°F)	Go to Step 5	Go to Step 6
5	Turn the ignition switch to the OFF position. Disconnect the AT inline 20-way connector. Additional DTCs may set. Turn ON the ignition with the engine OFF. With a scan tool, observe the Trans. Fluid Temp. parameter. Does the transmission fluid temperature change more than the specified value when the AT inline 20-way connector is disconnected?	1.5°C (2.7°F)	Go to Step 11	Go to Step 12
6	Test the signal circuit of the TFT sensor for an intermittent open or short to ground between the TCM and the AT inline 20-way connector. Refer to: Intermittent Conditions in Engine Controls - 3.6L. Circuit Testing in Wiring Systems Wiring Repairs in Wiring Systems Did you find and correct the condition?	-	Go to Step 13	Go to Step 7
7	Test the low reference circuit of the TFT sensor for an intermittent open or short to ground between the TCM and the AT inline 20-way connector. Refer to: Intermittent Conditions in Engine Controls - 3.6L. Circuit Testing in Wiring Systems Wiring Repairs in Wiring Systems Did you find and correct the condition?	-	Go to Step 13	Go to Step 12
8	Test the signal circuit of the TFT sensor for an intermittent open or short to ground between the AT inline 20-way connector and the TFT sensor. Refer to: Intermittent Conditions in Engine Controls - 3.6L. Circuit Testing in Wiring Systems Did you find the condition?	-	Go to Step 10	Go to Step 9
9	Test the low reference circuit of the TFT sensor for an intermittent open or short to ground between the AT inline 20-way connector and the TFT sensor. Refer to: Intermittent Conditions in Engine Controls - 3.6L. Circuit Testing in Wiring Systems Did you find the condition?	-	Go to Step 10	Go to Step 11
10	Replace the Automatic Transmission Wiring Harness Assembly. Refer to Wiring Harness Replacement . Did you complete the replacement?	-	Go to Step 13	-
11	Replace the TFT sensor. Refer to Fluid Temperature Sensor Replacement . Did you complete the replacement?	-	Go to Step 13	-
12	Replace the TCM. Refer to Module, Transmission Control - Replace . Did you complete the replacement?	-	Go to Step 13	-
13	Perform the following procedure in order to verify the repair: Select DTC. Select Clear Info. Drive the vehicle from a cool start, for at least 5 minutes. The rise in transmission fluid temperature must be at least 3°C (5.4°F) since start up. Select Specific DTC. Enter DTC P0711. Has the test run and passed?	-	Go to Step 14	Go to Step 2
14	With a 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 - 3.6L	System OK