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DTC codes / P2Cxx · Hybrid propulsion / P2CAC

P2CACDC/DC Converter Temperature Sensor F Circuit Range/Performance

P2CAC indicates that the powertrain control module has detected an out-of-range or performance fault in the temperature sensor circuit for the DC/DC converter, which is the device that steps high-voltage battery power down to charge the 12-volt system. The computer compares the sensor signal against expected values and flags the code when the reading is implausible, stuck, or erratic.

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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