What are the symptoms of water ingress in automotive circuit boards?

[DiPresley]

Water ingress in automotive circuit boards poses a risk of short circuits. Even if no immediate short circuit occurs and the system appears to function normally, prolonged exposure can lead to rust formation resulting in poor electrical contacts. Below are the hazards of water ingress in vehicles: White smoke from exhaust pipe: When water enters the automobile engine, it affects the combustion efficiency in the cylinders. The high temperatures convert water into steam, which is then expelled through the exhaust system, manifesting as white smoke emission. Engine stalling: Minor water intrusion increases rotational resistance on engine components, potentially causing deformation of parts like connecting rods and reducing power output. In cases of significant water ingress, severe consequences may include immediate engine shutdown, causing fatal damage to the engine.