The torque converter stator roller clutch can have two different malfunctions.
- Inspect the control solenoid (w/body and TCM) valve assembly connectors and pins (A, B, C) for the following conditions: 
 
- Ensure no metallic debris is inside the connectors near the terminal pins. 
 
- Inspect the control solenoid (w/body and TCM) valve assembly solenoid leads for contamination or metallic debris. 
 
- Inspect for oil leakage from any of the gaskets.