What does code P2AD2 mean?

DTC codes / P2Axx · Hybrid propulsion / P2AD2

P2AD2Throttle/Pedal Position Sensor/Switch B/G Voltage Correlation

P2AD2 indicates that the engine control module (ECM) has detected a disagreement between the signal from throttle or pedal position sensor/switch B and sensor/switch G, which are redundant sensors used to cross-check each other. The ECM compares the two voltage signals and sets this code when the correlation between them falls outside the expected range, typically due to a wiring fault, sensor degradation, or mechanical binding in the throttle body or accelerator pedal assembly.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

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.