Test Description

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

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

5: This step verifies a condition in the TFT sensor circuit inside the transmission.
6: This step tests for higher than normal circuit voltage which may also damage the TFT sensor.

DTC P0713

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 - 4.8L, 5.3L, and 6.0L
2	Inspect for correct transmission fluid level. 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	Install a scan tool. Turn ON the ignition, with the engine OFF. IMPORTANT: Before clearing the DTC, use the scan tool in order to record the Failure Records. Using the Clear Info function erases the Failure Records from the PCM. Record the DTC Failure Records. Clear the DTC. Does the scan tool display a TFT Sensor signal voltage less than the specified value?	4.92 V	Go to Intermittent Conditions in Engine Controls - 4.8L, 5.3L, and 6.0L	Go to Step 4
4	Turn OFF the ignition. Disconnect the AT inline 20-way connector. Additional DTCs may set. Install the J 44152 jumper harness (20 pins) on the engine side of the AT inline 20-way connector. Connect a fused jumper wire between the TFT sensor signal circuit and the low reference circuit of the J 44152 . Refer to Automatic Transmission Inline 20-Way Connector End View . Turn ON the ignition, with the engine OFF. Does the TFT Sensor signal voltage drop to less than the specified value?	0.2 V	Go to Step 5	Go to Step 6
5	Turn OFF the ignition. Install the J 44152 on the transmission side of the AT inline 20-way connector. Using the DMM and the J 35616 GM terminal test kit, measure the resistance between the TFT sensor signal circuit and the low reference circuit of the J 44152 . Refer to Automatic Transmission Inline 20-Way Connector End View . Does the resistance measure within the specified range?	3,088-3,942 Ω at 20°C (68°F) 159-198 Ω at 100°C (212°F)	Go to Intermittent Conditions in Engine Controls - 4.8L, 5.3L, and 6.0L	Go to Step 8
6	Test the signal circuit of the TFT sensor for an open or short to voltage between the PCM connector C2 and the AT inline 20-way connector. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 10	Go to Step 7
7	Test the low reference circuit of the TFT sensor for an open. Refer to Testing for Continuity andWiring Repairs in Wiring Systems. Did you find and correct the condition?	-	Go to Step 10	Go to Step 9
8	Replace the AT wiring harness assembly. Refer to Valve Body and Pressure Switch Replacement . Did you complete the replacement?	-	Go to Step 10	-
9	Replace the PCM. Refer to Powertrain Control Module (PCM) Replacement in Engine Controls - 4.8L, 5.3L, and 6.0L. Did you complete the replacement?	-	Go to Step 10	-
10	Perform the following procedure in order to verify the repair: Select DTC. Select Clear Info. Turn ON the ignition, with the engine OFF. Verify that the scan tool indicates a TFT Sensor signal voltage less than 4.92 volts for 409 seconds (6.8 minutes). Select Specific DTC. Enter DTC P0713. 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 - 4.8L, 5.3L, and 6.0L	System OK