Question about 2008 Jeep Commander 5.7
Wow no symptoms stated just the boring where is it...
but great question, names car and year, clearly
we've posted the full fsm online here 100s of times.
here we go again.
down load it, then type , (after opening it)
control F, the type compass.
i wonder if a compass car has compass , omg.
i have 2010 and have same book.
did you scan the PCM yet, i bet not.
and its guess what, telling why it fails right now.
see page 8M-6 in book FSM.
the dtc shows car needs degaussing,, now.... see?
and if that error happens the compass goes blank, RTM?
replacing first is "overthetop", why go there.
first are scans then tests.
or needs just a degaussing... (a tool)
"NOTE: In addition to the Universal Transmitter
operation the Electronic Overhead Module (EOM)
is responsible for some of the compass functions.
Anytime the EOM is replaced the compass variance
value must be set, (Refer to 8 - ELECTRICAL/
OVERHEAD CONSOLE/ELECTRONIC VEHICLE
INFO CENTER - STANDARD PROCEDURE - COMPASS
not only that the PCM can lose commmications with this OEM.
so not scanning all modern cars, is a road to doom.
why skip scanning the car first and checking fuses.?????
ask questions 2nd.
my motto.... and WIN
Posted on Dec 31, 2015
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