Fault diagnosis, fault symptoms

/ 9-5 (9600) / 1998 / 3. Electrical System / Telephone system / Fault diagnosis, fault symptoms

📄 No diagnostics communication

📄 The mute function for incoming or outgoing telephone call does not work. Incoming telephone sound is not relayed through the speakers.

📄 The microphone does not work

📄 The mobile phone batteries are not charging

📄 Poor reception/transmission on the mobile phone