Rotunda Transmission Tester

The Rotunda Transmission Tester is used to diagnose electronically-controlled transaxles and is used in conjunction with the pinpoint tests. The tests should be carried out in order. Installing the Rotunda Transmission Tester allows separation of the vehicle electronics from transaxle electronics.
- Bench Testing-Engine OFF
- Resistance/Continuity Tests
- Solenoid Voltage Test
- Dynamic Testing-Engine ON
- EPC Solenoid
- Transaxle Engagements
- Upshifts/Downshifts
- Torque Converter Clutch (TCC) Engagement
- Output Shaft Speed (OSS) Sensor
- Turbine Shaft Speed (TSS) Sensor
- Digital Transmission Range (TR) Sensor Testing
- Resistance/Continuity Test
- Sensor Tests
- Switch Tests-Park/Neutral, Backup Lamp, and Optional Circuits