Description Of Parameters

Description of parameters

Parameters, status

Testing optical fibers
Indicates if the 3 dB switch is on or off.
Normal = the MOST network has normal light intensity.
-3 dB = the MOST network's light intensity is reduced by 3 dB.

Number of nodes after ring break
Indicates the status of the result of the ring break diagnostic.
Value set:
OK = diagnostic ok
Diagnosis multimaster = one of more control modules beside the infotainment control module (ICM) thinks it is master node on the MOST network.
Diag all modules slave = all control modules, including the infotainment control module (ICM), consider to be a slave node on the MOST network.
Poor signal = the light intensity is too low for the Infotainment Control Module (ICM) to decode the signal.
Undefined = the infotainment control module (ICM) cannot interpret the result.

MOST locked
Indicates whether the MOST network is closed and communication possible.
OK = communication possible.
not OK = communication not possible.

Steering wheel buttons
Indicates if the selected steering wheel button is pressed in or released.
- Enter
- Exit
- Volume +
- Volume -
Released = the control module interprets the selected button as not being pressed in.
Pressed in = the control module interprets the selected button as being pressed in

Parameters, value

Temp display
The measured value indicates the display temperature, in °C.

LCD luminance
Measurement range 0 to 100%.
The measured value indicates the relative luminance of the display.

Number of nodes after Ring Break
Measurement range 0 to 10.
Indicates the number of nodes after interference on the MOST network.

Power supply, 5 V
Measurement range 0 to 10 V.
Normal value 4.5 -5.5 V.
The value indicates the internal power supply in the infotainment control module (ICM).

Voltage supply control module
Measurement range 0 -25.5 V.

The value indicates the power supply to the infotainment control module (ICM).