ECU Power Source Circuit [09/2019 - 10/2020]: 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.