32 4wd Problems

[matt31]

ive been having issues with the 4wd in my r32 gtr for a while now and was wondering if anyone has hads similar problems and how they fixed it. most of the time its fine but some times when i start it up the 4wd and the anti-lock lights r on and the car will be in rwd, if i turn the car off stright away without moving and the start it again its still in rwd but ive found that if i move foward a meter or so turn the car off then back on again and every thing is fine. I cant be the only person this has happened to and its really getting annoying so can someone please give me some advice, any help is very much appreciated.

[blind_elk]

I have had similar occasional problems with my GTS4, but I don't recall exactly what the cause was or how I fixed it (other than persistance until it didn't do it!).

I would first check the fluid in the ATTESA reservoir (in the boot, RH, behind panel). Make sure its between the 2 marks, with Ign ON.

[ylwgtr2]

make sure you have a good battery!This is most likely the prob....you have to erase the code aswell.....i have seen it heaps of times...do an on board diagnosis

[T04GTR]

ive been having issues with the 4wd in my r32 gtr for a while now and was wondering if anyone has hads similar problems and how they fixed it. most of the time its fine but some times when i start it up the 4wd and the anti-lock lights r on and the car will be in rwd, if i turn the car off stright away without moving and the start it again its still in rwd but ive found that if i move foward a meter or so turn the car off then back on again and every thing is fine.  I cant be the only person this has happened to and its really getting annoying so can someone please give me some advice, any help is very much appreciated.

<{POST_SNAPBACK}>

with the light on on the dash open the boot and see what code is being flashed on the atessa ecu.

could be a wheel speed sensor with shit all over it..

[matt31]

where abouts is this atessa ecu and reservoir

[Duncan]

The ATESSA resovoir is in the boot on the right, check the fluid is OK in there. You might also need to bleed the fluid.

Whenever the ATESSA warning light is on the ATESSA computer under the rear parcel shelf will be flashing a code on its LED. Check the workshop manual for what the codes mean

[matt31]

this is probably a stuipid question but where is the rear parcel shelf?

[femno]

lol its the flat area that your rear speakers sit into under the rear window, the attessa ECU is under that shelf in the boot, u have to stick your head in there to see it

[matt31]

ok i checked it out and it flashs 4 times can someone please tell me what that code means.

[GTRsean]

I'll boot up the old service manual on my other computer for ya to see what I can dig up.

[GTRsean]

Code:4 flashes: LEFT REAR WHEEL SPEED SENSOR OR CIRCUIT.

[GTRsean]

When you can, check the underside of your car on the left hand side of your diff and look for a sensor that picks up the teeth on the driveshaft. Check the connectors, wiring and the gap between the sensor pickup and teeth.

[matt31]

thank you very much.