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Home >> Toyota >> 2023 >> RAV4 Adventure >> Repair and Diagnosis >> External Pages >> Different car >> Section 11 (Hybrid Control System (2WD, W/ Nickel Metal Hydride Battery) - Diagnostic Codes (6 Of 6) & Circuit Tests) >> HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY) >> ECU Power Source Circuit [11/2018 - 08/2020] >> Description

ECU Power Source Circuit [11/2018 - 08/2020]: Description

WARNING: This page is about a different car, the 2020 Toyota RAV4 and 2019 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.

If the power switch is on (IG), the hybrid vehicle control ECU assembly applies current to the MREL terminal to turn the IGCT relay on. This supplies power to the +B1 and +B2 terminals.

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