Jump to content
SAU Community

Recommended Posts

Hello all,

I've been gettin some strange rattling type noises with my car every now and then and I believe one of me HICAS electronic components is faulty.

I'd say its part of the HICAS eletronic components because when these rattling noises happens, my HICAS sensor fault light comes on and will remain on until the car is turned off.

This problem has been occuring infrequently and is gettin annoying.. Does anyone have any idea on where I can get this checked out? as I aint very mechanically minded. Or even better if anyone here knows what to/how to check that would be awesome. :cheers:

My car is under the top warranty cover from some warranty place (part of the purchase of me car) so any proper repairs and stuff will be covered under warrant..

Oh if a place is recommended, then please try to recommend one on the gold coast.. :(

Thanks..

Link to comment
https://www.sau.com.au/forums/topic/44377-hicas-diagnostics/
Share on other sites

Your diff and or ABS braking is on the way out.

:D

Don't know who told you that but the hicas system has nothing at all to do with the ABS or the diff at all....

There is a diagnostic check that you can perform on your own car and it will tell you exactly what's wrong with the system.

You don't have to be that mechanically minded to do the test and the best thing is it won't cost you anything to find exactly whats wrong.

Just make sure the power steering reservoir is on the full mark on the dip-stick as this will make the hicas light come on and the diagnostics won't find this.

Diagnostics found here:

http://www.overflow.250x.com/diagnostics.htm

When attempting to do diagnostics be patient as it might not work the first time, but it will work if you keep at it.

MEGA

Link to comment
https://www.sau.com.au/forums/topic/44377-hicas-diagnostics/#findComment-908675
Share on other sites

you COULD do a HICAS diagnostic...

This is the sequence that got me into it. After trying a million times and nearly wearing out my steering wheel and brake pedal :rofl:  

(1)Turn ignition switch off

(2)Set shift lever to P or N (auto) or neutral position (man)

(3)Turn ignition switch ON

(4)immediately start engine

(5)Turn steering wheel LEFT TO RIGHT at least 20 degrees from central position 5 times or more. remember, LEFT TO RIGHT = 1 movement.. repeat 5 times  

(6)then immediatly after this press the brake pedal 5 times.

now here's the bit i'd never read before... DO ALL THIS WITHIN 10 SECONDS OF STARTING THE CAR ie go like an escaped mental patient

This is the first stage of diagnostic mode. raise the rev's of the car to 2000rpm and turn the steering wheel 180 degrees left or right and the rear wheels will move that magical 1 or so degree in relation to the steering wheel.

To go further into diagnostic mode...

(1)Depress and release brake pedal

(2)turn steering wheel left to right again at 20 degree+ movements

(3)(man)depress clutch pedal move gear lever to any pos. except neutral, then return to neutral and release clutch pedal

(auto) disengage parking brake lever, move lever to anything but park or neutral,  then return to park.

(4) drive car at least 3 meters forward at a speed of at least 2km/h, but not over 30km/h.

that should put the hicas into full diagnostic mode.  just interpret the hicas light outputs with those on grahams hicas section.

:rofl:

Link to comment
https://www.sau.com.au/forums/topic/44377-hicas-diagnostics/#findComment-910639
Share on other sites

When there is a problem with diff or ABS, especially ABS, the HICAS light will come on...

No... Sorry but the ABS system has it's own warning light, a yellow one, if there is some thing wrong with the ABS system (ie wheel speed sensors, ABS module etc) this light will come on, ABS on a GTS-t is rare as it was an optional thing, but on the 4wd models like the GTR or GTS4 they almost all have it unless it was removed as they already have the individual wheel speed sensors on the front wheels so they got the ABS as standard equipment.

The Hicas system doesn't have anything to do with the diff, sometimes the breather on the diff gets blocked open with dirt but there is nothing attached to the diff to trigger a warning light at all.

Hey Funky I have alread posted a link ot the hicas diagnostics in an earlier post, but yeah your right they must have missed it if you did.

MEGA

Link to comment
https://www.sau.com.au/forums/topic/44377-hicas-diagnostics/#findComment-912077
Share on other sites

Ok guys.. sorry I left out a very important information.. that is mine is a triptronic R34 , all the diagnostic seems to be directed to R33 or 32s. :)

Its played again over the weekend, I spoke to my mechanic and he advised that I will need to do a "data streaming" to find out what exactly is the fault, as the problem comes and go... Over the last weekend it got a lil bit silly, but fine yesterday.. :confused:

Link to comment
https://www.sau.com.au/forums/topic/44377-hicas-diagnostics/#findComment-912674
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Similar Content

  • Latest Posts

    • Actually, that's not entirely true. It's also the same motor in the 1st gen Nissan Cube but they're rare as hen's teeth.  
    • Yeah it is always worth testing and balancing actuators out of the box, just set the pressure regulator on a compressor very low (eg 5 psi) and increase it slowly to see when they both move.....unfortunately while you may be able to adjust the length of the actuator rod to minimise any difference, the actual pressure they move from is not adjustable so you need a well matched pair. And yes, the VCAM is probably contributing; the earlier in the rev range they come on boost and the slower the revs build (I think your demo was in 5th), the more you notice it.  Driving at WOT through 1st, 2nd, 3rd etc you will probably never hear it as any shuffling starts and is over super quickly
    • oh they were with that motor, you need to remove the engine to change the spark plugs (don't have to, but it does make it easier)
    • I certainly fall into the annoyed camp, but glad to hear that if it's happening at low boost then I'm not likely going to blow a turbo and end up with metal shards in my oil. Just feels like it prevents me from really driving it without hesitation and "peak" performance. Wonder if it's the VCAM, it did an impressive job of shifting the torque curve and faster spool, but maybe now it's "too fast" and there's too much air for how open the throttle is.  Based on some other threads, will also do some reading on synchronizing the actuators. They are the default actuators that come on the Garrett's and I would think they would be set the same coming from the factory, but if the turbos don't actually work exactly the same way at the same time as previously mentioned, it would be worth making sure the actuators are actuating together properly
    • I went down this rabbit hole before, ended up sourcing a motor from the UK (I'm in Japan) which also didn't function correctly. With the original motor, I disassembled it and reassembled it and it works somewhat, sometimes. What I could deduce from all my screwing around is that there is calibration of the gears on the inside of the motor and two ramps on the main gear which activate switches that operate the motor and move the sunroof either to retract into the roof or tilt. Where I got stuck was that, it seemed in my case that one or both of the switches that are activated by the ramp on the gear did not always activate and thus the motor did not move, causing it to sometimes not retract or tilt (apologies, I've forgotten which way it didn't work.).  Of course this part is discontinued at Nissan now, it's the same part in the S15 but no other models. I also contacted the manufacturer of the component for schematics - forgot the name, they're based in Gifu - but they declined to share the information due to being bound by an NDA, sadly. Looking through my pictures now, it seems I last had a crack at this in 2022. See, I so kindly wrote "open" and "close" next to the switches. If you figure it out, please do tell me. Those little switches, with the red buttons may need to be replaced.
×
×
  • Create New...