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Home >> Isuzu >> 2007 >> i-290 LS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Automatic Transaxle - 4T80-E - DTC P0218 To DTC P0977) >> DTC P0713 >> Test Description

Test Description

WARNING: This page is about a different car, the 2007 Cadillac DTS. 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.

  1. 5:  This step tests the TFT sensor signal circuit for being shorted to another circuit within the transmission. If the TFT sensor signal circuit shorts to another circuit, which is carrying voltage greater than five volts, the TFT sensor would become open.
  2. 6:  This step tests the TFT sensor signal circuit for being shorted to voltage, which would be the cause for the open in the TFT sensor.
DTC P0713

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: Before clearing the DTC, use the scan tool in order to record the DTC Failure Records. Using the Clear Info function erases the Failure Records from the TCM.
  3. Record the DTC Failure Records.
  4. Clear the DTC.
  5. Select Trans. Fluid Temp. on the scan tool.
Does the scan tool display a Trans. Fluid Temp. less than the specified value?		 -39°C (-38°F) Go to Step 3  Go to Testing for Intermittent Conditions and Poor Connections
3
  1. Turn OFF the ignition.
  2. Disconnect the AT inline 20-way connector. Additional DTCs may set.
  3. Install the J 44152  Jumper Harness (20 pins) on the transmission side of the AT inline 20-way connector. See Special Tools .
  4. Using the DMM and the J 35616  GM Terminal Test Kit, measure the resistance between terminals L and M of the J 44152  . See Special Tools .
Refer to Automatic Transmission Inline 20-Way Connector End View .Does the resistance measure less than the specified value?		 100 K Ω Go to Step 7  Go to Step 4 
4
  1. Test the signal circuit of the TFT sensor for an open between the AT inline 20-way connector and the TFT sensor.
  2. Test the low reference circuit of the TFT sensor for an open between the AT inline 20-way connector and the TFT sensor.
Refer to Testing for Continuity .Did you find an open condition?		 - Go to Step 8  Go to Step 5 
5  Measure the resistance between terminal L and all other terminals of the J 44152  . See Special Tools .
Does the resistance measure less than the specified value?		 1000 Ω Go to Step 10  Go to Step 6 
6  Test the signal circuit of the TFT sensor for a short to voltage between the TCM connector and the AT inline 20-way connector.
Refer to Testing for a Short to Voltage and Wiring Repairs .
Did you find and correct the condition?		 - Go to Step 9  Go to Step 9 
7
  1. Test the signal circuit of the TFT sensor for an open between the TCM connector and the AT inline 20-way connector.
  2. Test the low reference circuit of the TFT sensor for an open between the TCM connector and the AT inline 20-way connector.
Refer to Testing for Continuity and Wiring Repairs .Did you find and correct an open condition?		 - Go to Step 12  Go to Step 11 
8
IMPORTANT: The automatic transmission wiring harness consists of 2 separate harnesses, the Automatic Transmission Wiring Harness Assembly and the Automatic Transmission Wiring Extension Harness Assembly. In order to avoid the unnecessary replacement of parts, only replace the Automatic Transmission Wiring Harness Assembly.
Replace the automatic transmission wiring harness.Refer to Input Speed Sensor and Wiring Harness Removal .Did you complete the replacement?		 - Go to Step 12  -
9 Replace the TFT sensor.
Refer to Upper Control Valve Body Disassemble .
Did you complete the replacement?		 - Go to Step 12  -
10
    IMPORTANT: The automatic transmission wiring harness consists of 2 separate harnesses, the Automatic Transmission Wiring Harness Assembly and the Automatic Transmission Wiring Extension Harness Assembly. In order to avoid the unnecessary replacement of parts, only replace the Automatic Transmission Wiring Harness Assembly.
  1. Replace the automatic transmission wiring harness.
  2. Replace the TFT sensor.
Refer to Input Speed Sensor and Wiring Harness Removal .Did you complete the replacements?		 - Go to Step 12  -
11 Replace the TCM.
Refer to Control Module References .
Did you complete the replacement?		 - Go to Step 12  -
12 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:
    • Turn ON the ignition, with the engine OFF.
    • The Trans. Fluid Temp. must be greater than -40°C (-40°F) for 2 seconds.
  4. Select Specific DTC.
  5. Enter DTC P0713.

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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