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Strange noises from under the bonnet? Spooky. Happy Halloween from Auto Veteran: may your only scares be costumes.
DTC codes / P0Bxx · Hybrid propulsion / P0BB2
P0BB2 indicates that the hybrid or electric vehicle battery pack's voltage sensing circuit, designated as 'X' by the manufacturer, is reporting intermittent or erratic voltage readings to the battery energy control module. The computer detects this when the voltage signal from that specific sense line jumps, drops out, or otherwise behaves inconsistently compared to what the module expects during normal operation.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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