Home >> Toyota >> 2025 >> Prius LE >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Battery System (HEV) - Diagnostic Codes (2 Of 2), Symptom Tests & Circuit Tests >> HYBRID BATTERY SYSTEM (for M20A-FXS) >> DTC U0100-87: Lost Communication with ECM/PCM "A" Missing Message [12/2022 - ] >> Component Operating Range