6
If there is excessive voltage drop between the source battery
and the Select Controller, both Source and Lift Battery LEDs will
briefly turn green, indicating that the Select is trying to charge the
batteries. Then both LEDs will toggle orange for a few seconds.
This cycle then repeats (this could happen on any input source;
see Figure 1 for examples showing this issue on the 7-way aux
input).
The circuit needs to be tested while under load to determine what
is causing the excessive voltage drop. See the Stinger, Reefer,
and Aux Diagnostics sections for details on diagnosing excessive
voltage drop issues.
DIAGNOSTICS
EXCESSIVE VOLTAGE DROP DIAGNOSTICS
SERVICE TIP - Purkeys offers the Liftgate Double Check
tool, which can simplify the diagnosis of liftgate charging
system problems caused by excessive voltage drop. For
more information on the tool, please call 1-800-219-1269 or
visit our website at www.purkeys.net.
Figure 1: LEDs briefly turn green, toggle orange, then repeat
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