GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 Corvette 🢒 DTC 🢒 DTC P0713

Object Number: 1617472 Size: MF
Master Electrical Component List
Manual Transmission Schematics
OBD II Symbol Description Notice
Control Module References

Circuit Description

Important: This diagnostic procedure is for manual transmission vehicles with RPO VD1 and/or RPO Z06.

The transmission fluid temperature (TFT) sensor contains a semiconductor device which changes the resistance based on the temperature, a thermistor. The TFT sensor has a signal circuit and a ground circuit. The engine control module (ECM) applies a voltage, approximately 5.0 volts, on the signal circuit to the sensor. The ECM monitors the changes in this voltage caused by changes in the resistance of the sensor in order to determine the fluid temperature.

When the ECM senses a signal voltage lower than the normal operating range of the sensor, DTC P0713 sets. DTC P0713 is a type C DTC.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC P0713 Transmission Fluid Temperature (TFT) Sensor Circuit High Voltage

Conditions for Running the DTC

The engine speed is above 1,000 RPM for 7 seconds.

Conditions for Setting the DTC
    • The TFT is less than -35°C (-31°F).
    • The conditions are met for 5 seconds.

Action Taken When the DTC Sets
    • The ECM does not illuminate the malfunction indicator lamp (MIL).
    • The ECM records the operating conditions when the Conditions for Setting the DTC are met. The ECM stores this information as Failure Records.
    • The ECM stores DTC P0713 in ECM history.

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

Diagnostic Aids

Important: 

   • Remove any debris from the ECM connector surfaces before servicing the ECM. Inspect the ECM connector gaskets when diagnosing/replacing the module. Ensure that the gaskets are installed correctly. The gaskets prevent contaminate intrusion into the ECM.
   • For any test that requires probing the ECM or a component harness connector, use the J 35616 GM terminal test kit. Using this kit prevents damage to the harness/component terminals. Refer to Using Connector Test Adapters .

    • If the engine has sat overnight, the TFT and the intake air temperature values should display within a few degrees of each other. If the temperatures are not within 3°C (5°F), refer to Temperature Versus Resistance .
    •  For an intermittent, refer to Symptoms - Engine Controls .

Test Description

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

  1. This step determines if the malfunction is present.

    2.

  2. Using the Freeze Frame/Failure Records data may aid in locating an intermittent condition. If you cannot duplicate the DTC, the information included in the Freeze Frame/Failure Records data can help determine how many miles since the DTC set. The Fail Counter and Pass Counter can also help determine how many ignition cycles the diagnostic reported a pass and/or a fail. Operate the vehicle within the same freeze frame conditions, such as RPM, load, vehicle speed, temperature, that you observed. This will isolate when the DTC failed.

    3.

  3. A TFT above 139°C (282°F) indicates the ECM and TFT sensor wiring is OK.

    4.

  4. A TFT above 139°C (282°F) indicates the ECM and TFT sensor signal circuit is OK.

    5.

  5. Disconnecting the ECM allows using the DMM in order to test continuity of the circuits. This aids in locating an open or a shorted circuit.

    6.

  6. Disconnecting the ECM allows using the DMM in order to test continuity of the circuits. This aids in locating an open or a shorted circuit.

    7.

  7. This step inspects for proper terminal tension/connections at the ECM harness before replacing the ECM.

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: Record the Failure Records before clearing the DTCs. Using the Clear Info function erases the Failure Records from the ECM.

  3. Monitor the TFT sensor display on the Manual Trans Data List of the scan tool under Engine Controls.

Is the TFT sensor below the specified value?

-39°C (-38°F)

Go to Step 4

Go to Step 3

3

  1. Turn ON the ignition, with the engine OFF.
  2. Review the Failure Records data for this DTC and observe the parameters.
  3. Turn OFF the ignition for 15 seconds.
  4. Start the engine.
  5. Operate the vehicle within the conditions required for this diagnostic to run, and as close to the conditions recorded in the Failure Records as possible. Special operating conditions that you need to meet before the ECM will run this diagnostic, where applicable, are listed in Conditions for Running the DTC.
  6. Select the Diagnostic Trouble Code (DTC) option, the Specific DTC option, then enter the DTC number using the scan tool.

Does the scan tool indicate that the diagnostic failed this ignition?

--

Go to Step 4

Go to Diagnostic Aids

4

  1. Disconnect the TFT sensor electrical connector.
  2. Connect a 3 amp fused jumper wire between the signal circuit of the TFT sensor and the low reference circuit of the TFT sensor.
  3. Observe the TFT Sensor parameter on the scan tool.

Is the TFT sensor above the specified value?

149°C (284°F)

Go to Step 9

Go to Step 5

5

Connect a fused jumper wire from the TFT sensor signal circuit to a ground.

Is the TFT sensor at the specified value?

149°C (284°F)

Go to Step 8

Go to Step 6

6

  1. Turn OFF the ignition.
  2. Disconnect the ECM connector C2.
  3. Test the TFT sensor signal circuit for an open. Refer to Testing for Continuity .

Is the TFT sensor signal circuit open?

--

Go to Step 7

Go to Step 11

7

Repair the TFT sensor signal circuit. Refer to Wiring Repairs .

Is the action complete?

--

Go to Step 14

--

8

  1. Turn OFF the ignition.
  2. Disconnect the ECM connector C2.
  3. Test the TFT sensor ground circuit for an open. Refer to Circuit Testing .

Is the TFT sensor ground circuit open?

--

Go to Step 10

Go to Step 11

9

Replace the TFT sensor. Refer to Transmission Fluid Temperature Sensor Replacement .

Is the action complete?

--

Go to Step 14

--

10

Repair the TFT sensor ground circuit. Refer to Wiring Repairs .

Did you complete the action?

--

Go to Step 14

--

11

Test for a short to voltage on the signal circuit. Refer to Testing for a Short to Voltage and Wiring Repairs .

Did you find and correct the condition?

--

Go to Step 14

Go to Step 12

12

Inspect for poor connections at the ECM. Refer to Testing for Intermittent Conditions and Poor Connections and Repairing Connector Terminals .

Did find and correct the condition?

--

Go to Step 14

Go to Step 13

13

Replace the ECM. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

--

Go to Step 14

--

14

Perform the following procedure in order to verify the repair:

  1. Select DTC.
  2. Select Clear Info.
  3. Operate the vehicle under the following conditions:
    4. • Turn ON the ignition, with the engine OFF.
    • The Trans. Fluid Temp. must be greater than -40°C (-40°F) for 10 seconds.
  4. Select Specific DTC.
  5. Enter DTC P0713.

Has the test run and passed?

--

Go to Step 15

Go to Step 2

15

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