What does code P2716 and how do I fix? Shift selonoid switch.

P2716 Pressure Control Solenoid 'D' Circuit Malfunction
Possible Causes Setting Conditions

• Shift solenoid (SLT) connector is damaged (check pins for damage, moisture)
• Shift solenoid (SLT) control circuit is open or shorted to ground
• Shift solenoid (SLT) has failed (electrical fault)
• ECM has failed the solenoid is under/ behind the transmission pan

here is some info. I hope it helps.

This is a code relative to shift solenoid malfunctions in your computer. This is a known problem on your model and Toyota released an updated PCM to correct the problem.
While you can replace the PCM yourself if you are out of warranty, your dealer will need to code your VIN to it in order to get rid of the check engine light.
The warranty coverage is 8 years or 80,000 miles from new.

The details of the bulletin are below:

TRANSMISSION & CLUTCH
TC015-07 Title:
HARSH SHIFT AND M.I.L. "ON"
DTC P2716 Models:
'05 - '07 Corolla & Matrix (1ZZ-FE) September 20, 2007
TSB UPDATE NOTICE:The information contained in this TSB supercedes TSB No. TC014-06.
TSB No. TCO14-06 is now obsolete and should be discarded. Introduction
Some 2005 - 2007 model year Corolla and Matrix vehicles equipped with an automatic transaxle may exhibit a harsh shift condition and a M.l.L. ON" with DTC P2716 stored. Improvements have been made to the Engine Control Module (ECM) (SAE term:
Powertrain Control Module/PCM) to reduce the possibility of this condition occurring

Who told u to replace trans?..first thing should have been done was check wiring and connections at transmission and ECM and between the 2...also need to check the pressure control solenoids B and D...its possible the ECM is acting up especially since P2716 came back twice.

P2716 -Pressure Control Solenoid "D" Electrical (Shift
Solenoid Valve SLT)
Trouble Area:
1. Open or short in shift solenoid valve SLT circuit. (repair harness wiring)
2. Shift solenoid valve SLT defective. (replace)
3. ECM defective. (replace with a good known one)

Unfortunately a P2716 code is a code for the pressure control solenoid inside the automatic transaxle, my suggestion to you is to take it to your local Toyota dealer where they will be able to monitor the shift solenoids within the transaxle.

Hope this helps....

DTC P2716 PRESSURE CONTROL SOLENOID "D" ELECTRICAL

This has nothing to do with the shift solenoid switch. It is a failure of the ECM computer module. If your car is less than eight years old and less then 80K miles, it is covered by warranty

If not, the part is about $550.

There is a known issue with the 2005-2007 Corolla automatic transmission shift logic. The shift points may seem harsh, and the Check Engine light may be illuminated.

There is a technical service bulletin published (TC015-07) that will address and rectify this condition.

The diagnostic code P2716 will be stored in the computer memory. The procedure involves replacing the Engine Control Module (the computer) with an updated unit.

The repair is covered, under the factory warranty, for 96 months, or 80,000 miles, which ever comes first.

I hope that this helps Corolla you out.

There may be a problem in the transmission. Pressure control solenoid "D". A qualified shop or trans shop will need to check further and recommend repairs.