BMW Group Page 5 ISTA User Guide, ISTA version 4.05 of 69 1.1.3.2 ICOM (Integrated Communication Optical Module) ICOM is a communication device (VCI, Vehicle Communication Interface) and represents the diagnostic interface of the vehicle. It is connected to the vehicle and can then be connected via the ISTA connection manager.. A detail wiring diagram of BMW certain control module will help a lot in accessing and troubleshooting control unit. BMW ICOM ISTA-D ISTA-P engineering software will make things easier. What you need: WIFI BMW ICOM A2+B+C diagnostic tool hardware BMW ICOM software HDD (ISTA-D 3.46.30 ISTA-P 54.2.002 ) A laptop running Win 7 O/S
ISTAP+ has a user-friendly interface and can be used with a variety of diagnostic tools, including the BMW ICOM A2 and the BMW ICOM Next. It also has access to the BMW database, which includes technical documents, service bulletins, and wiring diagrams.. To confirm if an ICOM NEXT is faulty, try using a known working unit. If the working unit shows voltage and connects properly, your previous unit is likely defective. Using a Working ICOM NEXT. After confirming a faulty ICOM, switch to a working ICOM NEXT: Replace the Faulty ICOM: Disconnect the faulty ICOM and replace it with a working one.