4wd Light For S2's

[petrolfix]

Got this relay problem looked at again last week.

They hooked up a scanner to the 4WD ECU and got a 33 - Pressure Sensor code. They traced all the hydraulic lines for the 4WD system and the only pressure sensor or switch is mounted on top of the diff. They weren't 100% confident that this would solve the problem and I didn't want to pay for the labour to remove the diff to find out, so the clicking relay remains.

One thing they did notice was that there is one wire connected to the relay that is sending a -ve pulse which causes the relay to switch. But without access to a wiring diagram they were unable to trace it. I forgot to ask which wire it was, but maybe someone else can also check this.

I am assured though, that the 4WD system is working as it should. They tested it in the wet and everything is as it should be: 4WD engages when loss of traction is detected, and the 'Torque Split' guage shows a reading.

I think this is all the time I want to spend on this minor problem.

PS. My car is a manual, I don't know if the ATTESA is the same in autos.

phil did you end up fixing this problem. mine is also a manual and with the 4wd light on atessa is still working and showing up on the torque split gauge

[IBoughtANissan]

Sorry to bring up an old thread.

When it says to ground the middle terminal, is that referring to the consult plug under the dash and the 4th terminal across on the bottom?

[IBoughtANissan]

For anyone finding this later. It is the consult diagnostic plug and 4th pin on the bottom (middle) that you ground (I used a test light attached to the car)