Opel U2102-00 [portable] Site

To understand this, imagine your car is a corporate office. The Engine Control Unit (ECU) is the manager, the Transmission Control Module (TCM) is the foreman, and the Body Control Module (BCM) is the receptionist. They communicate via an intercom system called the (Controller Area Network).

Always clear the code after repairs and perform a full drive cycle (including braking and turning) to verify that stability control and ABS are communicating properly again. opel u2102-00