codes p0700 and p0740 were found. any suggestions on what to do next? they were cleared and the light came back on after about 40 minutes of driving.

 

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TEST ACTION APPLICABILITY
3 Ignition on, engine not running.
With the DRBIIIt, record and erase Transmission DTCs.
Drive the vehicle until it is fully warmed up to at least 43° C or 110° F.
Perform the following steps 3 times.
With the DRBIIIt, monitor TPS degree.
Drive the vehicle to the speed of 83 Km/h or 50 MPH and allow 4th gear to engage for
at least 10 seconds.
Close the throttle, then tip back in until the throttle angle, TPS degrees, is between
25 and 29 degrees.
NOTE: If you go over 30 TPS degrees, you must back off of the throttle and
retry.
Did the TCC engage during any of the attempts?
All
Yes ! Go To 4
No ! Go To 5
4 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 wires while checking for shorts 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.
Were there any problems found?
All
Yes ! Repair as necessary.
Perform 41TE TRANSMISSION VERIFICATION TEST - VER 1.
No ! Test Complete.
5 If there are no possible causes remaining, view repair. All
Repair
Disassemble and inspect the Valve Body per the Service Information
and repair or replace as necessary. If no problems are found in
the Valve Body, replace the Transmission Solenoid/Pressure
Switch Assembly. Replace the Torque Converter in either case.