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Home >> Toyota >> 2020 >> Prius LE >> Repair and Diagnosis >> External Pages >> Different car >> Section 270 (Hybrid Battery System - Diagnostic Codes (P1AC4-U1150) & Circuit Tests (Lithium-Ion)) >> HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY) >> DTC P1AC4-9E: Hybrid/EV Battery Stack 1 Current Interrupt Device Stuck On; DTC P1AC5-9E: Hybrid/EV Battery Stack 2 Current Interrupt Device Stuck On [08/2020 - ] >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2022 Toyota Avalon and 2021 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

If a current interrupt device (CID) located in a HV battery cell is shut off, the battery ECU assembly prohibits charging and discharging, illuminates the MIL and set a DTC.

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