
This system is controlled by the main body ecu. The main body ecu outputs signals to each door lock motor.
The door lock control system in the vehicle has the following functions:

Parts location
How to proceed with troubleshootingEcm power source circuit
Description
When the ignition switch is turned on, the battery voltage is applied to the
igsw of the ecm. The output
signal from the mrel terminal of the ecm causes a current to flow to the coil,
closing the contacts of the
integration relay (efi main relay) and supplying power to either term ...
Trailer towing tips
Your vehicle will handle differently
when towing a trailer. Help
to avoid an accident, death or
serious injury, keep the following
in mind when towing:
Speed limits for towing a
trailer vary by state or province.
Do not exceed the
posted towing speed limit.
Toyota recommends that the
vehicle- ...
Precaution
Handling precaution
When handling the electronic parts:
Avoid any impact to electronic parts such as
ecus and relays. Replace with new ones if
dropped or subjected to a severe blow.
Do not expose any electronic parts to high
temperatures and humidity.
Do not touch the connec ...