2000 toyota tundra Door dose not open from inside.

Toyota Tundra Power Door Lock Failure Diagnose Guide

click on link

im guessing you are saying only the door switch fails on one door?
so it's THAT switch bad ,it's wires or its logic box is bad. (or mis programmed)
you never said what door, driver? ONLY? or ?
the other doors on many cars have parent locks.
so if other than driver, door, check those masters.
do you have the FSM. and working from its diagnostic pages?

1) Key turns but dose not unlock door. This means that the rod that goes to the back of the lock has came off. This also means that is the reason door is not unlocking with the remote as it pops the lock rod inside the door which pushes the lock open.
2) Key does not turn lock at all but works passengers side door. This means that the locks has been changed in the door, but that doesn't sound like the problem as you say the remote doesn't open the drivers side door so more than likely the rod has came off the back of the lock

try rolling down the window while in the car and put your hand out the door and unlock and lock the car while in it then start it.

Replace the driver side door actuator.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/flavio_517b938f50183b92

I have the same problem I can unlock my toyota 99 4 runner but does not lock on inside switches or remote.

just found out about it today.

remove the screws that fasten the interior door panel to the door.  Visually inspect the handle assembly. there will be two cables that connect the handle and lock button to the door lock assembly.  I would bet that the L-shaped end of the interior door handle cable broke.  The replacement is self explanatory for the handle. Google the door lock assembly which isn't as visable.  Bob

Does the Driver side door lock and unlock from the lock switch inside? If not then you have a bad motor or bad connection to the lock/unlock motor inside the door.

remove the door panel, i believe the handle uses a cable on the link... simple fix

1. Start with key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.
2. Insert key into ignition (Do not turn) and pull it out.
3. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Close, then open drivers door.
4. Perform these steps within 40 seconds.
A. Using the power door lock switch on drivers door perform 5 lock/unlock cycles starting
with lock. Use an even pace and try to go about one cycle per second.
(1 cycle = 1 lock and 1 unlock.)
B. Insert the key in the ignition cylinder.
C. Turn the ignition to ON (Do NOT Start) then back to OFF.
D. Turn the ignition to ON (Do NOT Start) then back to OFF.
E. Remove the key from the ignition.
5. Within 3 seconds the power door locks should cycle automatically indicating successful entry
into programming mode. Return to step 1 if the locks do not cycle at this point.
6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remote simultaneously for 1 second.
B. Immediately after letting go of the lock and unlock buttons,
Press the lock button by itself and hold for 2 seconds. Within 3 seconds the door locks
should cycle once indicating successful programming. If the door locks don't cycle or
cycle twice, repeat steps A and B, your remote has not been accepted.
C. Repeat steps A and B in step 6 for each new transmitter.
7. Close drivers door.