R33 Gtr 4wd Light

[nizmo_freek]

Car has been going perfect ever since i bought it at the end of last year.

Has all of a sudden today started playing up, the 4wd light on the dash has randomly appeared and wont go away, the abs light is also coming up and wont go away either, the car has obvioulsy faulted inot 2wd mode as there is no sign of torque going to the front wheels at all on the stock torque gauge.

Have taking the car to nissan who have plugged in a consult II, only error code they can find is "ETS Valve", which they are not sure what that means, so are going to do a bit of reasearch and get back to me.

Anyone have any ideas on what it might be, we were thinking possibly a wheel speed sensor since the abs light is coming on aswell, but from the fault code it sounds more like an attessa pump??

Any help would be great.

[flyingfridge]

ETS is the Electronic Torque Split i.e ATESSA-ETS. Sounds like its something to do with that...

[rtune]

my manual says that

ETS F/S VALVE has several fault conditions:

* valve control terminal voltage is abnormal (open circuit)

* valve control terminal voltage is abnormal (short circuit)

* when fail-safe valve is being controlled to OFF it turns ON

these are the only ETS VALVE related issues.

a lot of these error conditions they light up both ABS and 4WD and the whole system goes into failsafe mode.

later in the manual, the "valve" is referred to as a solenoid: the "e-ts fail-safe solenoid" and perhaps the ecu

no longer has a good connection to it, or the solenoid is burned out.

Did you look at your atessa ecu after a drive of 30kmh for a minute then stop (not engine) and find

a LED flashing on the atessa ecu in the trunk. Long flashes are 10s, short are 1s. Code 12,23 might be

long,short,short .. long,long,short,short,short ...

depending on the code(s) flashed, you can find further things to check..