What does code P1564 mean?

P1564 · VolkswagenIdle Speed Control Throttle Position Low Voltage During Adaptation

P1564 on Volkswagen vehicles means the engine control module (ECM) saw the throttle position sensor signal fall below the expected voltage range while it was trying to learn the idle speed control throttle plate's closed and open stops. The ECM stores this code when the adaptation routine cannot complete because the throttle position voltage is too low during the idle speed control adaptation process.

SystemPowertrain

Code typeVolkswagen specific

SeverityMedium

Fix difficultyIntermediate

AreaVehicle speed, idle control and auxiliary inputs

Guidance is general and written for Volkswagen vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.