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RX 500h
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Repair and Diagnosis
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Different car
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Section 137 (Plug-In Charge Control System - Diagnostic Codes (1 Of 3))
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PLUG-IN CHARGE CONTROL SYSTEM (for PHEV Model)
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DTC P1BB5-28: Charger "B" Current Sensor after Boosting by PFC Boosting Circuit Signal Bias Level Out of Range / Zero Adjustment Failure [08/2023 - ]
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Component Operating Range
Component Operating Range
WARNING:
This page is about a different car, the 2025 Lexus RX 450h+ and 2024 Lexus RX 450h+. However, it is still accessible from the selected car via links, so may be relevant.
Electric vehicle charger assembly (charge control ECU)
DTC P1BB5-28 is not detected