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Ok, I searched 'attessa' and looked through nearly every thread there but none was close to my prob.

On the R32GTR last night the 4WD light comes on only after the car has been driven (not hard) for approx 30mins and there is no torque to the front wheels. The clutch was changed a few months ago.

Just found out that i can check for fault code in the boot and will have a go tonite. Is this always flashing? ...or do i need to bridge some pins?

I thought it may be the fluid level, but if this was the case the light would be on constantly no? :)

Can anyone provide any other tips or possible causes of the problem? ...i hope it isnt anything major :no:

Much appreciated

:(

I would check your fluid level as mine was low and the 4wd light would come on for no reason after id been driving a while. When it happened i would turn the car off then back on and it would turn off, but when i toped up the fluid it seems to have fixed it tho it has done it once since and i just figured it must have been maybe a air bubble in the line. Not sure if this helps :( If you find the prob and its something else can you let me know in case iv just been lucky!!

Cheers

Ok, i just checked the fluid level in its waaayy past the Full mark!!! Is that such a bad thing tho? Its only in the bottle yer?

Also checked the flashing light under that control box thingo and it flashed 18 times before pausing and reapeting again.....What does that mean?

hi mate,

a) the attesa ecu is not always flashing. it's only flashing if one or more problems exist. you must make sure it's only flashing one number, so you'll have to count the flashes twice.

b) if the clutch was changed, there could be a bubble in the attesa feed unit. this thread in the diy section shows you how to bleed and change the fluid.

c) code 18 is "ETS pressure switch or circuit". see attached image for the flowchart showing you how to diagnose and repair. hope you can read it ok.

let us know how you get on.

sig.

post-516-1164331042.jpg

Edited by sigsputnik

Hey all,

Ive got a simillar problem with my R32 GTR (4wd ECU flashes 1 flash per second for 18 seconds, and repeats), but the 4wd light comes on on startup and will normally go away after re starting. I'm still investigating, will look at ETS pressure switch.

Cheers, Sandy

Hey all,

Ive got a simillar problem with my R32 GTR (4wd ECU flashes 1 flash per second for 18 seconds, and repeats), but the 4wd light comes on on startup and will normally go away after re starting. I'm still investigating, will look at ETS pressure switch.

Cheers, Sandy

Let us know how you go Sandyb

GTR_STEALTH and sandyb, did you have a look at the flowchart? you need to examine the hydraulic unit with a multimeter to check for current. see the attached image for the hydraulic unit terminals.

quicksta, open your bother's boot and have a look at the attesa ecu - it will probably be flashing. count the number of flashes (carefully) and report back. there are at least half a dozen possible problems.

post-516-1164589306.jpg

ok ok, now this is getting a bit embarrasing for me -where do i find that harness? On the driver side kickpanel?

...sorry, but locating where everything is exactly is still new to me; and having no manual watsoever doesnt help:p

My brothers having the same problem with his 33 gtr except the 4wd and ABS light come on and off simultaneously. Whats goin on?

I had a similar problem in R33 GTR and mine turned out to be the altinator was overcharging the battery and upsetting the control signal voltages to 4WD and airbag. The battery light didn't come on thou, cause it only gets flagged on a low voltage or underchage. Was an intermittant problem in mine and the only thing that gave it away was when I saw the headlights go from dull to bright while driving at night.

Removed altinator and sent away for rebuild, $80 fixed.

Also you guys should try borrowing some new rims and tyres off someone. Make sure they are the same all round and go for a spin. Make sure it isn't a tyre wear issue.

Just some suggestions.

i know its for a R32 GTR

but im sure its better than nothing or maybe not if R33 is that different...dunno

Anyway

R32 GTR FULL SERVICE MANUAL (for those that do a search)

btw sigsputnik where did you find the error code?

RellikZephyr

Also you guys should try borrowing some new rims and tyres off someone. Make sure they are the same all round and go for a spin. Make sure it isn't a tyre wear issue.

Just some suggestions.

I've thought about trying new tyres/rims but the difference in tread shouldn't stop the torque to the front altogether should it!?

Cheers for the GTR manual, i'll definately be going over that with a fine tooth comb tonite :ninja:

i'm pretty sure you can find a good pic of the ETS hydraulic unit in Deren's post here:

http://www.skylinesaustralia.com/forums/in...t&p=2682991

You can find the attesa error codes on page CH67 of the service manual (if it's the same manual).

you must have the same size rims on the gtr or attesa will throw a fault - but i don't think it will throw a code 18 (more like codes 1-4).

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