Pump (Impeller): The driving member which is hooked up to the motor. It spins While using the motor and moves transmission fluid throughout the torque converter. The PCM/TCM will not likely established a DTC Unless of course there is a problem with the electrical circuit managing the torque converter clutch https://torqueconverterclutch08529.bloggactif.com/35253081/little-known-facts-about-torque-converter-clutch