ep message issue

[genpk]

Originally Posted by SD1too

Thanks for updating this Peter. Just to explain your question regarding fault codes:

I imagine that you have a 2 speed fan with resistor. Your TOAF (and T4) expect to see a 3 speed fan so they think there's a fault with the medium speed (speed 2) when they get no response from it.

Simon

Hi Simon, think you have nailed it, i did have a 3 speed which i replaced with a 2 speed fan.
Re the auto transmission, took the car out all day and the auto has run like a peach thus far with the correct fluid level in it.Hope it keeps going like that!!

[egremont]

Hi Peter,
I don’t claim to be an expert on this. But you could alter your car’s SA code (a section within the ZCS coding) so this doesn't come up as a fault code.

Presume Toaf may be able to change this after you have done the calculations. If Toaf won’t disclose your present ZCS data, visit a ex-Perth dealer that has a T4. Take a photo of the relative screen for future reference.
There are posts on here and elsewhere regarding the value of the various code settings..

It has been said many times that we should all take a note of our ZCS codes - in case of a future problem.


All the best.
Bruce.

[tourer]

Originally Posted by genpk

for the info any, finally got the car up on ramp, jacked the rear end up so the car
was level, checked auto fluid level plug, and low and behold about a half a litre of fluid came out over the full level point.
Not sure if having to much fluid in the box would cause the “ep” error and loss of drive but the gear changes are now alot smoother and tighter.
My thoughts (and hopes) are maybe being as the ep fault seemed to always happen when starting off when the engine etc is cold, maybe the extra fluid plus
cold caused extra fluid pressure in the box causing the fault.
Time will tell!!

Hope you are right, but I do remember a conversation a few years ago with one of the Longbridge Rectification Dept guys. He said if they had a car back with faulty auto transmission which was giving them grief, a Jatco engineer would tell them to bung in an extra litre of fluid as it wasn't that critical.
Good luck

[genpk]

Originally Posted by tourer

Hope you are right, but I do remember a conversation a few years ago with one of the Longbridge Rectification Dept guys. He said if they had a car back with faulty auto transmission which was giving them grief, a Jatco engineer would tell them to bung in an extra litre of fluid as it wasn't that critical.
Good luck

Thats interesting, after levelling of the car and the subsequent draining of approx a half litre of over fill ,the changes are alot tighter and concise and less flaring between changes.
I guess this is not a definitive result as to why the “EP” warning has come up and subsequent loss of drive on odd times.
A couple of things ive done also like cleaning, unplugging and re plugging the
auto connection, adjusting the gear selector switch, i hope may have helped.
I might add that this cars auto had a new replacement reverse piston fitted at 70,000km (now done 230,000km) so i would assume it was the newer improved
one was fitted.
I do remember a few years ago leaving the car standing for a month, starting it up and for the first 5 minutes the gear changes were very harsh but came good
after driving a short time. Almost like somthing in the box drained or solenoids stickkng?