This guideline is intended to aid the designer of automotive electronic systems and components by providing material that may be used to develop environmental design goals. The climatic, dynamic, and electrical environments from natural and vehicle-induced sources that influence the performance and reliability of automotive electronic equipment are included. Test methods that can be used to simulate these environmental conditions are also included in this document. The information is applicable to vehicles that meet all the following conditions and are operated on roadways: Front engine rear wheel drive vehicles. Vehicles with reciprocating gasoline engines. Coupe, sedan, and hard top vehicles. Part of the information contained herein is not affected by the above conditions and has more universal application. careful analysis is necessary in these cases to determine applicability.