Need Help On R34 Atessa System, 4wd Light On Dash

[skylinelover]

HI,

After parking my BNR34 for 2 weeks, first start 4WD light turns on from dash, restart the car then everything feels ok, 4 mins later 4WD light stay on, car RUN RWD mode. i checked 4WD fuse under bonnet, it keep blowing the new fuse. it seems like some where short circuit. any ideas?

i m considering replace atessa pump unit assy, my car is not v-spec, can i use the v-spec atessa pump (one of the member has 3 of vspec pump) ? or can i use any R33 atessa unit?

[GTSBoy]

Take to mechanic. Diagnose.

[scotty nm35]

Sounds like the pump motor is shorting out if it's blowing fuses.

Not sure but I think all the Attessa pressure packs are similar, even the later M35 Stagea ones I have here.

[burn4005]

Is it a 30A fuse that is blowing? F/L- 6?

What's the continuity across the motor? It's the 2 pin plug on the hydraulic unit

Edited October 6, 2015 by burn4005

[skylinelover]

Is it a 30A fuse that is blowing? F/L- 6?

What's the continuity across the motor? It's the 2 pin plug on the hydraulic unit

YES, It's the 30amp fuse under the bonnet (indicate 4WD).

i m guessing could be the pump unit, but not sure which on i should go for.

[skylinelover]

Sounds like the pump motor is shorting out if it's blowing fuses.

Not sure but I think all the Attessa pressure packs are similar, even the later M35 Stagea ones I have here.

thx,

i m guessing the same, start looking for that unit now.