Suzuki shifts in and out of 3rd
A/T tranny.? 4speed?
(check fuses yet?)
this transmission shifts via the TCM electronic brain.
and will throw (store, or live) DTC errors.
IN USA all these cars are OBD2 compliant and all scan tools
work here, you plug it in , and drive and see if there are TRANNY
DTC errors. all cars 1996 and newer, do that. (for sure Suz)
these errors are covered in the FSM and tells you what tests
to do , to isolate (and diagnose) what is wrong.
in and out.
what does that mean.?
to a false neutral? or to 2nd? what?
btw2, the TCM on this car also goes to limphome mode.
when certain DTCs are set. and will skip gears at that moment.
my suz,, both skip 2nd gear in limphome mode.
The TCM needs good inputs or it can't work right.
it has many inputs.
shifter switch PRNDL.
VSS1, VSS2 (veh,speed,sensors)
TPS. (throttle angle.)
ECT. (engine heat)
this trans, 4speed, you can do the unplug test on it (FSM)
and it works like a manual transmission, see the FSM for how to do that, this test proves the trans is ok, and the TCM is cause or its inputs are bad.
on Oct 10, 2014