Using the Tool
3-5
3.4 MIL Status
The
MIL
(Malfunction Indicator Lamp)
Status
function displays the
state of the computer module that commanded the MIL to turn on. A
request is sent to the computer module(s) to state whether they are
commanding the MIL to turn ON. If the
MIL
Status
is ON and the MIL
is not illuminated with the engine running, then a problem exists in the
MIL circuit. Refer to “Diagnostic Circuit Check” in the service repair
manual.
Some
manufacturers
will
turn
the
MIL
Off
if
a
certain
number
of
drive
cycles
occur
without
the
same
fault
being
detected.
The
DTCs
related
to
a
MIL
are
erased
from
the
computer’s
memory
after
40
warm-up
cycles
if
the
same
fault
is
not
detected.
Select the
MIL
Status
function and
press the
ENTER
key.
The
MIL
Status
will display on the
top line and a scrolling message on
the bottom indicating if the MIL lamp
should be ON or OFF.
When done, press the
BACK
key to return to the
Main
Menu
.
!
Main Menu
3)MIL Status
MIL - ON
MIL Lamp Should be On
