Haldex DIAG++ Operator's Manual page 38

If box 1 is selected this adjusts the working parameters
in the presence of No REV.
If box 2 is selected this modifies the left and right
pressure control for dollies to prevent unwanted torque
steer.
Select box 3 if a steer axle is configured and operated
via ports 21 / 22.
If box 4 is selected (as shown) load sensing function
is available together with ABS on backup powering
ISO 1185 (24N).
If box 5 is selected this allows the weight of the trailer
to be indicated in the cab if the truck supports this
function.
If box 6 is selected, any automatic lift axles will not
raise until move away (when the lamp goes out). It is to
enable roller testing of all axles even when unladen.
(Note: Use for the UK vehicle test authority).
If box 7 is selected Master valve on trailer will always
brake as fully laden (Used for example for fixed load
trailers).
If box 8 is selected Slave (s) valves on trailer will always
brake as fully laden
Click on the 'Save configuration' button to save the
updated settings.
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Innovative Vehicle Solutions
Operator's Guide
2022