How do i located vvt solenoid D in my toyota matrix 2006?

SOURCE: 2006 Toyota Matrix 2nd fuse panel location?

The second fuse panel that you seek is under the dashboard, on the driver side (for a US car). This box is called the "JB1" (junction block #1), and contains several relays in addition to the 15 amp "CIG" fuse that you need to replace.
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SOURCE: how to change front pads on 2006 toyota matrix

http://us.toyotaownersclub.com//index.php?s=bb18602e7ff4236dab25828b356169e0&showtopic=141&pid=7424&st=0&#entry7424

here you can find detail instructions and pictures. Have Fun!!

SOURCE: 2006 Toyota Matrix transmission

If I'm undersatanding you correctly this could be a shift solenoid. I would take it to an ASE certified transmission shop. This repair is beyond a DIYer.

SOURCE: '03 Toyota Corolla 1,4 VVT-i 4ZZ engine idle rpm

Check your idle speed control valve situated at the bottom of the throttle body. Sometimes the valve sticks and will make the engine rev high or low at idle and the ECU can't adjust it properly.

SOURCE: how to replace pressure control solenoid p2616 toyota matrix 2007

You may not have to replace it yourself. I hope your car is under 80,000-100,000 miles there was a recall issued for that problem.
P2716 is caused by a bad Ecm, (engine control module,) Toyota has an upgraded ECM for this and are warrantying these for 8 years or 80k miles, Take it to the dealer and have them replace it for you, there should be no charge if the vehicle is under 80k miles according to service bulletin (41554a).