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Home >> Toyota >> 2020 >> Highlander L, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 33 (Hybrid Control System - Diagnostic Codes (3 Of 5)) >> Hybrid Control System >> DTC P1A80-00: Hybrid/EV Battery Stack 1 Delta SOC High; DTC P1AD0-1B: Hybrid/EV Battery Block Circuit Resistance Above Threshold [11/2023 - ] >> Monitor Description

Monitor Description

WARNING: This page is about a different car, the 2025 Toyota Highlander and 2024 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

If there is an abnormal internal resistance or SOC in the battery blocks, the battery voltage sensor determines that a malfunction has occurred. When the malfunction detection condition is satisfied, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.

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