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Home >> Toyota >> 2023 >> 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 P1A81-00: Hybrid/EV Battery Stack 1 Delta SOC High (Extreme); DTC P1A86-00: Hybrid/EV Battery Stack 2 Delta SOC High (Extreme) [12/2022 - ] >> Monitor Strategy

Monitor Strategy

Related DTCs P1A81 (INF P1A81-00), P1A86 (INF P1A86-00): Battery cell malfunction
Required sensors/components Battery ECU assembly
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation 1 driving cycle
Sequence of operation None