R33 Attessa & ABS fault codes needed + any extra info available

[tandy ass]

I've scoured the net and can't find much useful stuff at all.

ABS and 4WD lights illuminate after starting the car. There's no antiskid functionality and no 4WD, as you assume since these lights are telling us.

I've got code 15 and 56 on the ABS/Attessa ECU in the boot. I've traced 15 to be a faulty servo on the ABS unit - putting a 5 ohm load across the suspect servo (that reads open circuit) gets rid of code 15.

I now suspect the G-sensor under the centre console to be the culprit - I've disconnected it and the ECU remains at code 56. I took the G sensor apart and didn't go further than removing the lid and top PCB till I realised its really not designed for any repair.

The R32 4WD system is electrically completely different to the R33, I've got the R32 complete service manual, the ECU is different, the G sensor is different, the ABS unit is different etc. Whether they're just a pin reshuffle or more, I dont know.

I've also got the JPNZ R33 manual but thats only for all R33 engines, not the rest of the car.

If anyone has any info to help, I'd really appreciate it before shelling out dollars for a G sensor.

Cheers

[Shonky]

Did you find this thread Bozz?
http://www.gtr.co.uk/forum/upload/showthread.php?t=39781

[Stix Zadinia]

lolz g-sensors are teh fucknwoosh

(sorry, i don't have anything useful to contribute, i wish i had your electronics skills though!)

[tandy ass]

Shonky, I did but my testing revealed the number 56 there isn't the solenoid, it is number 15 :)

I dont have access to another R33 GTR to unplug the G sensor to find out if code 56 is the sensor.

Just for reference, the R33 ABS/Attessa ECU's use long flashes to indicate the tens and short flashes to indicate the ones, code 15 is one long flash then five short flashes, just like most Nissan engine ECU's. R32 ABS/Attessa ECU's simply flash the required amount of times, say fault 15 exists, it flashes 15 times then waits.

The code reference between R32 and R33 is different, hence I'm stuck.

[GT-R LM]

Talk to DoughBoy on skylines australia. Chris knows just about everything if not everything on GTR's