Installation Procedures

Installing Rotunda Transmission Tester 007-00130 (part of Rotunda Transmission Tester Kit) with Rotunda 4R44E/4R55E Overlay/Cable 007-00106 included in Transmission Tester Kit or equivalent at the transmission connector allows separation of the vehicle electronics from transmission electronics. Disconnecting normal vehicle electronics will cause firm shifts and defaults transmission to maximum line pressure. During tester usage, additional DTCs may be set. Therefore, it is important that all codes are erased after service has been made. To verify elimination of all codes, rerun On-Board Diagnostics.

1. Disconnect vehicle wiring harness at transmission connector.

CAUTION: Do not attempt to pry off connectors with a screwdriver. This will damage the connector and could result in transmission concerns.

2. Install appropriate overlay onto tester.





3. Turn tester solenoid select switch to the OHMS CHECK position.
4. Connect appropriate interface cable to transmission tester and then to the appropriate transmission connectors.

CAUTION: Route all cables away from heat sources.

5. Install a line pressure gauge into line pressure tap on transmission.

CAUTION: Route gauge line away from heat sources.