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DTC codes / P2Dxx · Hybrid propulsion / P2DAB

P2DABDC/AC Converter Control Module A Switch B Circuit Range/Performance

P2DAB indicates that the control module for a DC-to-AC converter (often an inverter for an accessory power outlet or hybrid system) has detected an out-of-range or performance fault in the circuit for switch B, which is part of the converter's internal switching network. The computer compares the switch's electrical behavior against expected values and sets this code when the signal is erratic, stuck, or outside the normal operating window.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaHybrid propulsion

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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