Toyota Tundra Power Door Lock Failure - Diagnose Guide
When the door locks don't work on your Toyota Tundra, it is a real pain. This is a common problem for a lot of make/models, including the Toyota Sequoia. Here is a guide to figure out what’s wrong with them.
Door locks not working? Here is a guide to fix the problem.
Luckily, the Toyota Tundra power door locks are pretty easy to self-diagnose what’s wrong. While there is the possibility of a pretty big electrical issue, most of the problems are minor and easy to fix.
All Doors/Multiple Doors Fail
If you have multiple doors or all your doors don’t work, it is often an electrical issue that needs a certified mechanic’s diagnosis. Why? It could simply be several things like a bad relay, snipped wire, or something else. Check your fuses prior to taking it in, but in the end, take it in.
Single Door Doesn’t Work
When a single door won’t work any longer, it is most likely a bad actuator motor inside the door. This is the motor that controls the locking rod. Quite often you will notice a buzzing sound from the door when the locks are engaged. Typical steps to fix this issue are:
- Order an OEM replacement part online or through your local parts dealer like parts.olathetoyota.com.
- Remove the door panel by finding screws on the exterior of the panel and armrest.
- While removing the panel, make sure to find and unhook the electrical cable that attaches to the door handle on the inside.
- Peel back the shroud and follow the door lock rod to the bottom of the door. There is usually an actuator motor attached there.
- Replace the actuator motor with your replacement.
- Reverse these instructions to put the door back together.
Here is a link to forum with details on how to order them and how to fix it.
Remote Lock/Unlock Failure
This is the best and easiest fix. If your key fob no longer unlocks the doors, it is time for a new battery. Go ahead and pop off the back of the key fob to find the battery. Buy a new one, replace it, and voila! It should work now.
If none of these solutions work for you, it is time for a mechanic to look it over. Hopefully, one of these helped fix your problem.
