eddiem Posted August 1, 2010 Share Posted August 1, 2010 hey all im having some issues with my gtr r32 i get the 4wd light come on if i start the car and let it warm up but if i start the car and drive straight away it all works any ideas? Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/ Share on other sites More sharing options...
Gav Posted August 2, 2010 Share Posted August 2, 2010 hey all im having some issues with my gtr r32 i get the 4wd light come on if i start the car and let it warm up but if i start the car and drive straight away it all works any ideas? Check the ATTESSA computer in the boot for error codes (do a search here or refer to the manual for how to do this). My bet is error code 18 Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-5378949 Share on other sites More sharing options...
jonnyo Posted August 28, 2011 Share Posted August 28, 2011 Check the ATTESSA computer in the boot for error codes (do a search here or refer to the manual for how to do this). My bet is error code 18 Long time later to revive the thread but what is the fix for error code 18? I changed the Attessa pressure switch (pain in the backside job) and still had the light come on and no 4wd? Cheers Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-5988763 Share on other sites More sharing options...
GTR_JOEY Posted March 4, 2013 Share Posted March 4, 2013 Anymore info on this? ive had a few issues the last couple of days and im getting error code 18 18 – ETS pressure switch or circuit is it generally the switch that is faulty or can it be dodgy wiring, im guessing it could be either or... its a bit of an intemidant fault atm, generally when i start it up cold its good to go, but if i stop then try to start it up again it generally comes on from quick research the switch is above the final drive this has only started to happen since a removed the engine and did a few mods while it was out.. i also pulled out all the solenoids in the Hicas system though surely that isnt the problem i havent disconnected any off the ATTESSA LINES so im assuming its all bled and ready to go, I "assume" but i will do a bleed anyway.. just looking for peoples experiences with this Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6772270 Share on other sites More sharing options...
GTR_JOEY Posted March 4, 2013 Share Posted March 4, 2013 After some more research ive found the its usually the pressure switch thats at fault and generally the pump needs to be replaced Its a pretty big job from what ive been reading from, i just find it very odd that its all of a sudden happened now after i done all these mods Righto so after closer inspection there seems to be some oil leaking on the rear diff.. it doesnt actually look like its coming from the rear diff as there oil all over the top bushes... im guessing there is a small leak in the pressure switch or there abouts really need to get the car up in the air for a proper inspection.. the fluid level has also dropped in the reservoir so thats really a dead give away that theres a leak somewhere... will report back on closer inspection Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6772322 Share on other sites More sharing options...
GTRsean Posted March 4, 2013 Share Posted March 4, 2013 Give it another bleed in accordance with the service manual and see how it goes.... Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6772332 Share on other sites More sharing options...
GTR_JOEY Posted March 4, 2013 Share Posted March 4, 2013 im pretty confident its leaking dude, but ill give it a bleed and see how we go Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6772344 Share on other sites More sharing options...
GTR_JOEY Posted March 5, 2013 Share Posted March 5, 2013 Ok so there was the tiniest leak coming from the nipple below the pump so I have it a tighten.. Also noticed a large build up of gunk on the rear right hand abs/wheels speed sensor on the drive shaft.. Gave it a good clean and now the trouble has seemed to did appear.. What that has to do with error 18 "ETS pressure switch or circuit" I have no idea Will give it another couple of days before I claim victory Haven't bled it yet Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6772986 Share on other sites More sharing options...
GTSBoy Posted March 5, 2013 Share Posted March 5, 2013 It might have been causing the ATTESSA system to do something in response to the strange wheel speed signal (don't even know if this can occur) and the consequent unusual operating condition of the ATTESSA system caused high or low or whatever wrong pressure - enough to cause code 18. /wild theory. Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6773147 Share on other sites More sharing options...
GTR_JOEY Posted March 5, 2013 Share Posted March 5, 2013 Hmmm our theories just went out the window It seems to be that initial priming of the ATTESSA is determining weather or not the 4wd is going to work or not If I start the car up and and it doesn't and the 4wd light doesn't come on within the first 5 seconds it won't come on at all.. The fault is very tempremental so I'm considering looking for another switch as it seems the most Likely cause atm... This would appear obviouse considering the fault code but I've read many threads where people have replace the switch with a known working one and still had the fault lol Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6773372 Share on other sites More sharing options...
GTR_JOEY Posted March 5, 2013 Share Posted March 5, 2013 Ok found a workshop manual, As per the fault diagnostic ice checked PIN number 42 for ground at the back of the ATTESSA ECU There was ground there so tomorrow I will need to get under the car to check PIN number 3 and 4 for earth at the ETS hydraulic unit plug Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6773430 Share on other sites More sharing options...
GTR_JOEY Posted March 6, 2013 Share Posted March 6, 2013 Have it a mega good bleed today.. Issue is still there.. Also checked the 4 pin plug that goes to the switch.. Looks pretty clean Check the earths at pin 42 and 4 as designated by the workshop manual fault chart.. Everything so far as been pointing towards "ETS hydraulic unit is faulty" Looks like it pretty much a diff out job atm Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774788 Share on other sites More sharing options...
Piggaz Posted March 6, 2013 Share Posted March 6, 2013 Looks like it pretty much a diff out job atm Best be not putting the stock one back in then Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774801 Share on other sites More sharing options...
GTR_JOEY Posted March 6, 2013 Share Posted March 6, 2013 How did I know you would say something like that! Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774834 Share on other sites More sharing options...
Piggaz Posted March 6, 2013 Share Posted March 6, 2013 How did I know you would say something like that! Well it's too late for the front, trying to save the rear now haha!!! Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774844 Share on other sites More sharing options...
GTR_JOEY Posted March 6, 2013 Share Posted March 6, 2013 Lol why don't you try help me fix the bloody 4wd instead of being a smart ass Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774878 Share on other sites More sharing options...
Sinista32 Posted March 6, 2013 Share Posted March 6, 2013 have a look here http://www.skylinesaustralia.com/forums/topic/415393-anyone-in-town-that-knows-the-attesa-system/ May help Give Glen a call at ESP - cant hurt Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774888 Share on other sites More sharing options...
GTR_JOEY Posted March 6, 2013 Share Posted March 6, 2013 Thanks Richard, worst comes to worst i will try him.. i know someone whos pretty cluey giving me a hand with it atm so hopefully it all works out Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774913 Share on other sites More sharing options...
Sinista32 Posted March 6, 2013 Share Posted March 6, 2013 You able to hea down to Goulburn this weekend for mid march meet up with the Canberra lads ? Spose not if this isn't sorted Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774919 Share on other sites More sharing options...
GTR_JOEY Posted March 6, 2013 Share Posted March 6, 2013 hmmmm this is tempting whats the program for the weekend, Wakefeild laps? ideally yes i would like the 4wd to be working Link to comment https://www.sau.com.au/forums/topic/331254-r32-gtr-4wd-light-comes-on-at-times/#findComment-6774928 Share on other sites More sharing options...
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