Check engine light came up the other day and the p0740 "torque convertor clutch solenoid circuit" code is what i got, cleared the code but came back up within 10 miles, any advice? Van is 2011 mainstreet with 60,000 miles on it, i really hope its not a trans issue, seen some posts of having to replace the torque convertor.

 

I did find this post regarding the p0740,

1.CHECK IF RELATED DTCS ARE PRESENT

1. With the scan tool, read DTCs.

Are DTCs P0750 and/or P0841 also present?

Yes

•(Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing) and perform the appropriate diagnostic procedure.

No, No other Codes

•Go To 2

2.CHECK IF THE DTC IS CURRENT

1. Turn the Ignition ON, Engine not running.

2. With the scan tool, record and erase DTCs.

3. Drive the vehicle until it is fully warmed up to at least 43° C (110° F).

4. Perform the following step three times.

5. Drive the vehicle at 80 Km/h (50 mph) and allow 4th gear to engage for at least 10 seconds. Close the throttle, then tip back in until the throttle angle is between 25 and 29 degrees. Note that if you go over 30 degrees, you must back off of the throttle and retry.


Did the TCC engage during any of the attempts? How do i tell if the TCC engaged?

Yes

•Go To 3

No

•Perform the Hydraulic Pressure test in accordance with the Service Information and repair the internal transmission components and Torque convertor as necessary.
•Perform the appropriate TRANSMISSION VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

3.CHECK THE WIRING AND CONNECTORS


1. The conditions necessary to set the DTC are not present at this time.

2. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit.

3. Wiggle the wiring and connectors while checking for shorted and open circuits.

4. This DTC can also be set under extreme temperature conditions. This is usually caused by an internal problem. Verify if the problem is only experienced under extreme hot or cold conditions.

5. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set.

6. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply.


Were there any problems found?

Yes

•Repair as necessary.
•Perform the appropriate TRANSMISSION VERIFICATION TEST. (Refer to 28 - DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure).

No

•Test Complete.