How to learn MB SD Connect C4 from LED display and message?-OBD365.com

This is for those with MB Star diagnosis SD connect C4 multiplexer. Obdii365.com will explain a lot about LED display with message, buttons, icons on the diagnostic system.

Display, buttons and icons:

The display is divided into two. In the upper area, permanent icons are shown (see following figure).

In the lower area, details are shown during the call up of information, setting of device parameters and during the diagnosis.

LED and acoustic signals

In the following table all LEDs and acoustic signals are shown together with their meaning:

Working status	Green LED	Red LED	Acoustic signal	Display illumination
Switched off	off	off	off	off
Switched on	flashes slowly	off	once briefly	on
Operational	lights up	off	off	on
Working	flashes slowly	off	off	on
Loss of WLAN reception in infrastructure	lights up	flashes slowly	once long	on
Loss of external power supply	lights up	flashes slowly	once briefly	on
Battery discharged	on	flashes fast	three times briefly	on
“Key finder” activated	flashes fast	flashes fast	three times long	on
Flight recorder	off	on	off	off

Information in the display

Information buttons

1 x Displays the vehicle battery voltage.
2 x Displays the internal workshop name (matches number clip) saved in the device and the SDconnect serial number.
3 x Displays the SDconnect software version number.
4 x Displays the WLAN card MAC address, where fitted.

Function keys

1 xand confirm with Manual WLAN mode change from road wireless network to workshop wireless network and vice versa. Requirements: – WLAN card installed – WLAN mode active – No wired connection used
2 x and confirm with Power down SDconnect. Requirements: – SDconnect is not connected to a PC – No external power supply connected
3 x and confirm with Reboot SDconnect.
4 x and confirm with Reset to factory settings/delete the configuration. Requirement: – SDconnect is not connected to a PC
5 x and confirm with Abort an application. Requirements: – SDconnect is not connected to a PC – An application is active

SDconnect C4 operating condition

Boot process The “Device is booting…” message appears during the boot process.
Standby The “Device not in use” message appears after booting.
Working status The name of the PC connected followed by >> and a free text for the application is displayed if the connection is active.
Sleep mode The current working status (here sleep mode) can be shown in the display.
Connection status The SDconnect display and the deskband are connected with each other. The operating mode selection (here: Road wireless network) has to be the same in both.