Section 430 (Troubleshooting): Description: Notes
WARNING: This page is about a different car, the 2003 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.
Description of Each System Mentioned in the DI Section Related to Gateway System.
HINT:
Master control means that the Control ECU becomes a master and controls each electric system.
The sub control system transmits to the Master Control ECU the signals of the switches that are connected to the ECU. It also operates the motor by receiving the command of the Master Control ECU.