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If you press 1 and 6 at the same time and hold for a while, hardware and software versions will show on the display, followeb by its serial and manufacture date? FF button scrolls through the entries.
HU reverts to its previous state after several seconds.
Pressing 2 and 6 also invokes a test, not sure what it does - checksum, short circuit and something else is displayed.
3 and 6 is a speaker test. FF button cycles throught the speakers
The tests are available even if CAN is disconnected.
If you press 1 and 6 at the same time and hold for a while, hardware and software versions will show on the display, followeb by its serial and manufacture date? FF button scrolls through the entries.
HU reverts to its previous state after several seconds.
Pressing 2 and 6 also invokes a test, not sure what it does - checksum, short circuit and something else is displayed.
3 and 6 is a speaker test. FF button cycles throught the speakers
The tests are available even if CAN is disconnected.
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