1990 Toyota Seabreeze cruise control kicksout at the slightest hill or wind chg.

Tests/Procedures: 1. In the diagnosis box under the hood, jump terminal Tc to E1 after the vehicle has been test-driven, and the cruise light has flashed after trying to be set. The cruise control light will flash the code number. Tech Tips: If the cruise control light flashes when it is set, this indicates that a code is stored. If the key is turned off, all codes will be lost.