Automotive connectors: the housing is only part of the connection

Useful to know

Automotive connectors link control units, sensors and actuators to the wiring system. Bosch emphasizes the combined role of the interface, housing, terminals and wire connections under vibration, changing temperatures and moisture. [1]

Two similar-looking connectors are not automatically interchangeable. Check their application, pin arrangement and technical specifications. An electrical connection can cause a fault even when the sensor works correctly. Forcing an unsuitable terminal or choosing a replacement housing by appearance does not restore the required compatibility.