Door Control Transmitter Assembly

This electronic unit is a key part of the vehicle’s door locking system. It is needed to receive your remote key signal and command the locks to open or close with one touch. In many Toyota 4x4 platforms, it also supports stable communication between the receiver, body ECU, and door actuators for smooth daily use ?.

How It Works

The module reads the coded radio signal from the key fob, verifies it, then sends a clean control output to the central locking circuit. This helps prevent false triggers and keeps lock/unlock timing correct, even in hot, dusty, or влаж conditions.

When It’s Failing

If the unit is damaged or internally shorted, you may notice the remote stops working, doors lock/unlock randomly, only some doors respond, or the locks act slow and weak. In worse cases it can drain the battery, blow related fuses, or overload door lock actuators ?.

Why Replace It

Replacing a tired transmitter assembly restores proper remote range, reliable central locking, and reduces stress on the electrical system—important for long-term durability and security.

✅ Compatibility

• Land Cruiser 100
• Land Cruiser Prado