What are ECU Connectors?

ECU Connectors, also called PCM connectors, are used to connect different types of controllers, particularly in vehicle applications. An electronic control unit (ECU) or electronic control module (ECM) is an embedded system that controls one or more of the electrical systems or subsystems in a car or other vehicle. One side of the connector interfaces with the ECU (or BSI, UCH, EZS, CAS, counters, key loop, etc.) The other side connects to an OBD2 tool, such as Magpro2, Avdi, Smok, Bosch KTS, or Renault Clip. Modern motor vehicles can have up to 150 ECUs

A variety of specific connectors have been developed to interface with ECMs. These connectors feature attributes that serve the specific electronic system the ECM controls. These connectors are designed to handle the high-speed transmission and high voltage requirements needed to serve automotive applications. Rugged materials are selected for their ability to handle the overall harsh-environment conditions present in automotive environments.

Markets

• Automotive
• Transportation
• Industrial

Applications

In addition to supporting automotive ECUs, these connectors can also serve equipment used in factory automation, semiconductor manufacturing, office machines, measurements, and broadcasting.

Design Notes

• Many ECUs are used in modern automotive programs, including the engine control module (ECM), powertrain control module (PCM), transmission control module (TCM), brake control module (BCM or EBCM), central control module (CCM), central timing module (CTM), general electronic module (GEM), body control module (BCM), and suspension control module (SCM). ECU connectors link these electronic units within the overall wiring architecture.
• ECU connectors are designed to endure harsh, high-temperature, and high-vibration automotive environments. Rugged materials are selected that can endure extreme low and high temperatures (typically -40 °C to 125 °C).
• Very secure locking mechanisms, such as double locking designs, must also be designed to withstand shock and vibration.
• Size and weight savings continue to be imperatives in the automotive industry, making miniaturization an important consideration for most ECU connectors.