Check the bulkhead connector - cruise and OD are on the same row (one up from the bottom) on my 1988, and the wiring SHOULD be similar for a 1989.
With the battery disconnected, remove/reinstall the connector(s) to the SMEC and make sure that you don't have some oxidation that just showed up on those two fuctions.
Double check grounds around the cruise servo and under the dash.
Past that, I got nothing.
Oh, and crack open your factory service manual and go through the pin point tests for both.
RwP
With the battery disconnected, remove/reinstall the connector(s) to the SMEC and make sure that you don't have some oxidation that just showed up on those two fuctions.
Double check grounds around the cruise servo and under the dash.
Past that, I got nothing.
Oh, and crack open your factory service manual and go through the pin point tests for both.
RwP