CONSTRUCTION
The backup boost converter uses a semiconductor relay. The semiconductor relay also functions as a fuse. When overcurrent is detected, the relay is turned off to protect the circuit.
The backup boost converter supplies battery voltage to help make up for the voltage drop that occurs when the engine is restarted. This prevents the operation of the following equipment from being interrupted due to low battery voltage.
Audio Head Unit
Power Steering ECU Assembly
Skid Control ECU
Main Body ECU (Multiplex Network Body ECU)
Combination Meter Assembly
Inner Rear View Mirror Assembly
Clearance Warning ECU Assembly*1
Spiral Cable with Sensor Sub-assembly
Electric Oil Pump for CVT*2
*1: Models with TOYOTA parking assist-sensor system
*2: Models with multidrive/continuously variable transaxle