Diagnostic Test

With the scan tool, read Transmission DTCs

Are the DTCs P0750 and/or P0841 present also? 

Yes 

1. Refer to DIAGNOSTIC CODE INDEX and perform the appropriate diagnostic procedure(s).
2. Perform 40/41 TE TRANSMISSION VERIFICATION TEST - VER 1  .

No 

1. Go To step  2).

Ignition on, engine not running.

With the scan tool, record and erase DTCs.

Drive the vehicle until it is fully warmed up to at least 110 degrees (F).

Perform the following step 3 times.

Drive the vehicle at 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? 

Yes 

1. Go To step  3).

No 

1. Perform the Hydraulic Pressure test per the Service Information and repair the internal transmission components and Torque convertor as necessary.
2. Perform 40/41 TE TRANSMISSION VERIFICATION TEST - VER 1  .

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

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

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

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.

With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set.

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

Were there any problems found? 

Yes 

1. Repair as necessary.
2. Perform 40/41 TE TRANSMISSION VERIFICATION TEST - VER 1  .

No 

1. Test Complete.