Rotunda Transmission Tester
WARNING: This page is about a different car, the 2003 Mercury Sable and 2003 Ford Taurus. However, it is still accessible from the selected car via links, so may be relevant.
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 transmission electronics. For additional information, refer to the ROTUNDA TRANSMISSION TESTER manual for these tests.
- Bench Testing - Engine OFF
- Resistance/Continuity Tests
- Solenoid Voltage Test
- Dynamic Testing - Engine ON
- EPC Solenoid
- Transmission 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