Volvo VNL 780 Operator's Manual page 229

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Switch/Circuit Status Check
The Switch/Circuit Status check tests the functionality of the switches and their
corresponding circuits. To start the check the driver must turn the individual switches on/off.
As the switches turn on/off, the cluster updates the DID to show switch option being tested
and it's status.
Note: The Hazard and High/Low Switches are momentary switches and return to the OFF
position when released during testing.
1. The initial Pre-Trip screen displays. Using
the stalk controls, select Switch Status.
2.After the diagnostic is completed, the
following screen displays detailing the status
of each switch.
W3030322
W3030323
OPERATION
219

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