Yellow lamp Indicates
that the fuel filter is restricted and needs to be serviced. May illuminate
at the same time as the Malfunction Indicator Lamp (MIL) and Amber
Warning Lamp (AWL).
Service soon.
Lamp Solid
Lamp Flashing
At the start of every ignition
cycle (a bulb check).
Never flashes.
Fuel filter needs service.
Water-in-Fuel Lamp (WIF)
Lamp
Lamp
Name
Description
Result
Water-In-Fuel
(WIF) Lamp
Yellow lamp indicates that
the fuel water separator has reached its capacity and needs to be
drained.
Engine water separator must
be drained or an engine derate will occur.
Lamp Solid
Lamp Flashing
At the start of every ignition
cycle (a bulb check).