Fault diagnosis, fault symptoms

/ 9-3 (9440) / 2004 / 3. Electrical System / Bus and diagnostics communication / Fault diagnosis, fault symptoms

📄 ICM cannot be contacted on any bus.

📄 One or more systems connected to the P-bus "MISSING" from the bus.

📄 No P-bus system can be contacted

📄 One or more systems connected to the I-bus "MISSING" from the bus.

📄 No I-bus system can be contacted

📄 Ring open-circuit on O-bus detected