RXV Curtis Controller won't move

[cartdoc1969]

The controller will check the reverse buzzer during the startup tests. It's one of the last tests in the sequence and will not pass if it doesn't see it. I believe on the Curtis units the reverse buzzer can be turned off in the settings. You'll need to get the connection clean enough so the handheld can communicate with the controller. I would take a close look at the wiring harness for corrosion or poor connections. Check the run plug under the cup holder, it's a common failure point.