ECU Power Source Circuit [10/2017 - 09/2019]: Description
If the power switch is on (IG), the hybrid vehicle control ECU assembly applies current to the MREL terminal to turn the IGCT NO. 1 relay on. This supplies power to the +B1 and +B2 terminals.
If the power switch is on (IG), the hybrid vehicle control ECU assembly applies current to the MREL terminal to turn the IGCT NO. 1 relay on. This supplies power to the +B1 and +B2 terminals.