Rotunda Transmission Tester

Rotunda Transmission Tester
The Transmission Tester is used to diagnose the digital transmission range sensor and is used in conjunction with the pinpoint tests. The tests should be carried out in order. Installing the Transmission Tester allows separation of the vehicle electronics from transmission electronics; refer to the Transmission Tester manual for these tests.
^ Digital Transmission Range (TR) Sensor Testing Digital Transmission Range (TR) Sensor Diagnostic Chart
^ Resistance/Continuity Test
^ Voltage Test - PARK/NEUTRAL, Reversing Lamp, and Optional Circuits