: The module typically features several large multi-pin connectors (often color-coded) that link to the main wiring harness.
Use a multimeter to verify signal continuity from the ECU to the BSM connector pins (e.g., Pin 13 is often a critical signal line). siemens bsm b3 schematic verified
Often the first point of failure, resulting in a "crank but no start" condition. : The module typically features several large multi-pin
: Controlling high-current components like the radiator fan and windshield wipers. siemens bsm b3 schematic verified