GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Pontiac 🢒 2004 🢒 Vibe - FWD 🢒 DTC 🢒 DTC P0711

Circuit Description

When the transmission fluid is cold, the sensor resistance is high. As the transmission fluid warms up, the sensor resistance decreases. This diagnostic monitors the TFT sensor circuit. The circuit may be functional but not in the normal operating range. This diagnostic indicates stuck, erratic, intermittent, or skewed values, resulting in reduced system performance. The TFT sensor range is -40 to +225°C (-40 to +437°F).

If the PCM detects an intermittent voltage or no voltage change in the TFT sensor circuit, then DTC P0711 sets.

Conditions for Setting the DTC

DTC P0711 sets when both of the following conditions occur:

Condition 1

12 seconds after engine start up the ambient temperature and engine coolant temperature is more than -10°C (14°F).

Condition 2

The change in transmission fluid temperature is less than 10°C (50°F) after 20 minutes and 10 km (6.2 miles) of normal driving.

Conditions for Clearing the DTC
    • A scan tool can clear the DTC.
    • The PCM clears the DTC from PCM history if the vehicle completes 40 warm-up cycles without a non-emission related diagnostic fault occurring.
    • The PCM cancels the DTC default actions when the fault no longer exists and the DTC passes.

Test Description

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

  1. This step attempts to repeat the condition that set the DTC.

    2.

  2. This step tests the circuit for an open or high resistance.

    3.

  3. This step tests the circuit for a short to ground.

Step

Action

Value(s)

Yes

No

1

Did you perform the Diagnostic System Check?

--

Go to Step 2

Go to Diagnostic System Check - Engine Controls in Engine Controls - LV6

2

Did you perform the Transmission Fluid Checking Procedure?

--

Go to Step 3

Go to Transmission Fluid Check

3

  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 Failure Records for reference. Using the Clear Info function will erase the stored Failure Records from the PCM.

  3. Record the Failure Records.
  4. Clear the DTC.
  5. Drive the vehicle for at least 7 minutes.
  6. Using a scan tool, observe Trans. Fluid Temp. for rapid fluctuations in temperature.
  7. Record the temperature at the start and end of the trip.

Was the transmission fluid temperature within the specified value?

50 - 80°C (122 - 176°F)

Go to Step 9

Go to Step 4

4

  1. Turn the ignition switch to the LOCK position.
  2. Disconnect the PCM connector C1.
  3. Use a Digital Multi Meter (DMM) in order to measure the resistance between PCM harness connector C1 terminal 28 and terminal 30.

Is the resistance equal to the specified value?

Resistance should be 6.4k ohms at 10°C (50°F) and 0.2k ohms at 110°C (230°F).

Go to Step 9

Go to Step 5

5

  1. Disconnect the transmission connector at the transmission.
  2. Use the DMM in order to measure the resistance between terminal 1 and terminal 6 on the transmission component connector.

Is the resistance equal to the specified value?

Resistance should be 6.4k ohms at 10°C (50°F) and 0.2k ohms at 110°C (230°F).

Go to Step 6

Go to Step 8

6

  1. Disconnect the transmission connector at the transmission.
  2. Disconnect the PCM connector C1.
  3. Test the transmission temperature sensor circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 7

7

  1. Disconnect the transmission connector at the transmission.
  2. Disconnect the PCM connector C1.
  3. Test the transmission temperature sensor signal circuit for a short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

--

Go to Step 12

Go to Step 10

8

  1. Remove the transmission oil pan.
  2. Inspect the terminals and internal harness for damage.
  3. Replace the TFT sensor if no damage exists. Refer to Solenoids and Wiring Harness Replacement .

Is the procedure complete?

--

Go to Step 12

--

9

  1. Install a known-good PCM. Refer to Powertrain Control Module Replacement in Engine Controls-LV6 .
  2. Perform the DTC Confirmation Procedure.

Does DTC P0711 reset?

--

Go to Step 10

Go to Step 11

10

Refer to Diagnostic Aids for a possible intermittent condition.

Is the procedure complete?

--

Go to Step 12

--

11

Replace the PCM. Refer to Powertrain Control Module Replacement in Engine Controls-LV6.

Is the procedure complete?

--

Go to Step 12

--

12
  1. Turn the ignition switch to the LOCK position.
  2. Reconnect all the connectors.
  3. Perform the DTC Confirmation Procedure.

Does the scan tool display any DTCs?

--

Go to the applicable DTC table

System OK