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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 116 (Hybrid Control System (AWD) - Diagnostic Codes (4 Of 6)) >> HYBRID CONTROL SYSTEM (for AWD) >> DTC P0B23-1C: Hybrid/EV Battery "A" Voltage Sensor Voltage Out of Range [12/2019 - 11/2023] >> Monitor Description

Monitor Description

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The hybrid vehicle control ECU calculates the differences between the received HV battery voltage, boost converter voltage, and inverter voltage. If the differences exceed prescribed values, the hybrid vehicle control ECU determines that there is a malfunction in the battery voltage sensor circuit. If the hybrid vehicle control ECU detects this malfunction, it will illuminate the MIL and store a DTC.

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