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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 P31B4-00: Extreme Hybrid/EV Battery Charging Current [09/2022 - ] >> Description

DTC P31B4-00: Extreme Hybrid/EV Battery Charging Current [09/2022 - ]: Description

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The battery ECU assembly monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunction.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate Note
P31B4-00 Extreme Hybrid/EV Battery Charging Current An abnormal signal is detected by the battery ECU assembly (excessive charging current).
(1 trip detection logic)
Hybrid vehicle control ECU Does not come on Master Warning:
Comes on
SAE Code: P31B4