Troubleshooting
Display problems
The display and Nav
Control do not turn on.
The displayed values
are not those
expected.
"--" and not the
expected value is
displayed or the
gauge pointer blinks in
the layout NAV DASH.
"Invalid value"
"No MediaBox
connected"
"MediaBox not
powered"
78
7" TFT display | Operating instruction v. 1.0 | © 2018 Continental Automotive Switzerland AG
Problem
No connection or faulty connection
between the devices on the VDO
CAN bus network.
VDO CAN bus network not supplied
with power.
Nav Box is not connected to power.
Incorrect sensor configuration.
Incorrectly connected sensor.
The NMEA 2000/SAE J1939
network backbone was incorrectly
created.
Data not available on the network.
Sensor not connected.
The NMEA 2000/SAE J1939
network backbone was incorrectly
created.
The sensor to be calibrated is faulty
or not connected to Nav Box.
MediaBox is not connected to the
NMEA 2000 network or to the
power supply.
MediaBox is connected but off.
Cause
Check the connections on the VDO CAN bus network and
make sure the last network device is connected to a
termination.
Check the connection of the VDO CAN bus network to Nav
Box.
Check the connection.
Check configuration in menu Sensor config.
Check connection of the sensors to the NMEA 2000, NMEA
0183, SAE J1939 network and the digital and analog inputs
on Nav Box. Refer to the Nav Box documentation.
Check connections and make sure there is a termination at
the beginning and end of the backbone.
Check the correct operations of the sensor.
Connect the sensors to the NMEA 2000, NMEA 0183, SAE
J1939 network or the digital and analog inputs on Nav Box.
Refer to the Nav Box documentation.
Check connections and make sure there is a termination at
the beginning and end of the backbone.
Check or replace the sensor.
Check connections.
Turn on MediaBox, see "MediaBox use" on page 73
Solution