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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 435 (Hybrid Battery System (Li-Ion W/ Pa10) - Diagnostic Codes (2 Of 2) & Circuit Tests) >> HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10) >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [09/2022 - ] >> Description

DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [09/2022 - ]: Description

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The battery ECU assembly transmits and receives signals via CAN communication to and from the ECM.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
U0100-87 Lost Communication with ECM/PCM "A" Missing Message A CAN communication error between the battery ECU assembly and ECM (CAN communication system malfunction) occurs
(1 trip detection logic)
CAN communication system Comes on Master Warning:
Comes on
SAE Code: U0100