TOD Graphic Flashed "Check"

Filter always change with fluid.Did you try Lucas no slip?

post #2 by you, on a 99 Diesel.
again posting to USA forum with non usa car, right?>
we dont have that diesel here. nor the matching trans, here.
that means no books, nor listings in Mitchells covering it. zero , nada.
why not be the first if millions to post country your car resides, (best is where bought new country)
our USA car has only the 3.5L 6ve1w engine. gas.
sorry,
now that trans, answering in pure blind generic mode.
1: check all fuses. first.
2: check fluid levels in the box, using correct method, in your book (oper,guide)
3: get the transmission filter changed, and full flush.
4: On usa cars we have OBD2 and can scan the PCM and see all Transmission errors, in your country if not a clue. but it can be scanned, i bet.
EOBD is Europe tool.

next time when posting in GREEN-go land post country first and make it a WIN/WIN=.

got the PT 4wd system?
or the TOD system.?
left dash cluster, see graphic of wheels etc.? that is TOD
we cant guess drive lines here. all are optional day one made in Japan.

if part time , its for ice only or offroad, never dry pavement.
are you? on dry pavement? cant guess that either.

This indicated that some problem in transmission gearbox or gearbox harnees

sounds like a sensor - when did it start - if just cranked up one day and bam it is there - sounds like either a brake wear indicator issue - if they are connected in those - or a fluid level change in the rear end or transfer case - look for leaks and check the brake pads or shoes

I have the same problem with my '98 Trooper - the TOD light, that is. Took it to a good shop for diagnosis. They said the TOD sensor was bad and it would cost abot $480 for the part. We were looking at a hefty bill, so decided to do without TOD for now. Manual 4WD still works fine. They said that Isuzu's arrogance that the transmission wouln't leak leaves us with a tiny 1/4" check port to fill through. We got concerned enough, and had over 180,000 miles, that we took it to a transmission shop and had it flushed and refilled correctly. To be honest, we now have 230,000 miles and don't really see any ATF leaks.

get a code reader and see what codes it pulls

Its under the plastic covers round the shift levers between the seats.

what kind of vehicle is it

My Torque on demand and 4 hi/low flashed for a couple days then stopped on it's own. There is a sensor somewhere under the truck that gets dirty from I was told.