I bought my TLC with no Master Key and was fretting over losing the only key I had.
I took up Mauser's Virginized ECU with Programed Keys Service on this thread:
forum.ih8mud.com
Mauser shipped the his Virginized ECU+ Programmed Blank Keys promptly since it was gonna be a swap for my old ECU.
I first had the Blank Keys cut to my Key by a locksmith. Local Toyota dealer refused to cut it since it wasn't OEM.
The ECU swap was a breeze, took me 10 minutes.
1) take off your Glove box (Retainers off and unscrew two brackets at the bottom)
2) Remove the Black Cover by unscrewing 3 screws that hold it down and unhook the things attached to it:
3) Take off the Top and Bottom Brackets holding the ECU:
4)Move said Brackets to the new ECU:
5) Move the Wires over to the new ECU:
6) Test the new keys by starting the Truck.
7) Remount new ECU back and reverse the process
8) Program Key Fobs.
Overall I am very very very happy to have 2 new master keys, fobs that work and all for muccccchhhh less than the stealership.
Thank you Mauser and Son!
I took up Mauser's Virginized ECU with Programed Keys Service on this thread:

Master keys/ ecu virginizing service

Mauser shipped the his Virginized ECU+ Programmed Blank Keys promptly since it was gonna be a swap for my old ECU.
I first had the Blank Keys cut to my Key by a locksmith. Local Toyota dealer refused to cut it since it wasn't OEM.
The ECU swap was a breeze, took me 10 minutes.
1) take off your Glove box (Retainers off and unscrew two brackets at the bottom)
2) Remove the Black Cover by unscrewing 3 screws that hold it down and unhook the things attached to it:

3) Take off the Top and Bottom Brackets holding the ECU:


4)Move said Brackets to the new ECU:


5) Move the Wires over to the new ECU:

6) Test the new keys by starting the Truck.
7) Remount new ECU back and reverse the process
8) Program Key Fobs.
Overall I am very very very happy to have 2 new master keys, fobs that work and all for muccccchhhh less than the stealership.
Thank you Mauser and Son!