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Corolla Cross L, AWD
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Repair and Diagnosis
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Different car
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Section 30 (Hybrid Battery System - Diagnostic Codes (2 Of 2) & Circuit Tests)
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Hybrid Battery System
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DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [11/2022 - ]
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Component Operating Range
Component Operating Range
WARNING:
This page is about a different car, the 2025 Toyota Corolla Cross, 2024 Toyota Corolla Cross, and 2023 Toyota Corolla Cross. However, it is still accessible from the selected car via links, so may be relevant.
Battery ECU assembly
DTC U0100 (INF U0100-87) is not detected