Code 21: ATF Temperature Sensor: Symptom

Input signal circuit of TCU to ATF temperature sensor is open or shorted causing "No Shift" to 4th gear (after engine warm-up), no "Lock-Up" of torque converter (after engine warm-up) and/or harsh shift feel.

NOTE: Connectors are identified for both models. Legacy model is listed first and SVX model second. Example; (B33/68)=(Legacy/SVX). Pin locations and numbers are identical.