Hint:

Problem symptoms table (2005/11-2006/01)
Terminals of ecu (2005/11-2006/01)Components
...
Dynamic radar cruise control
with full-speed range
In vehicle-to-vehicle distance
control mode, the
vehicle automatically accelerates,
decelerates and
stops to match the speed
changes of the preceding
vehicle even if the accelerator
pedal is not depressed.
In constant speed control
mode, the vehicle runs at a
fixed speed.
Use the dynamic radar
cru ...
Ecm 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 ...