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HICAS Diagnostic

Lozza150

By Lozza150,
in Tutorials / DIY / FAQ

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steve12 Explorer

steve12

Posted
Posted

Hi all,

I also had problems with my HICAS with the light coming on after start up but would go away when you turn ignition off then on again once car warmed up. This occurred around 6 months ago. In the last 2 month the HICAS light would suddenly come on during driving and the steering would go heavy. Any who, it ended up being the HICAS control module. I replaced a leaking capacitor and cleaned up all the corrosive liquid on the PCB. Car is a 93 R33 gts-t.

Hope this helps..

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Greg
Greg

HICAS Diagnostic Mode There is a HICAS warning light in the instrument cluster. If it comes, on it is indicative of a problem. R32: Check the HICAS oil level (power steering reservoir in some models

GTSBoy
GTSBoy

The boss is the thing that goes onto the steering column that an aftermarket wheel is then attached to. A HICAS boss is one that has the required drive pin arrangement in it to make the steering angle

02_FNE Community Regular

02_FNE

Posted
Posted

hey..

my hicas light comes on after driving along the highway for any more then about 5-10mins.. doesnt go off until car is turned off. but normal around town type driving it never comes on.. also when its on after driving on hughway the steering doesnt seem to change at all..

any ideas?

02_FNE Community Regular

02_FNE

Posted
Posted (edited)
Do you have an after market steering wheel?

Have you tried the diagnostics?

Can you replicate the problem every time you are on the highway?

yes i have a "personal" brand steering wheel..

nothing shows on diagnostics..

yes problem happens everytime without fail..

Edited by 02_FNE
steve12 Explorer

steve12

Posted
Posted

It maybe your steering wheel that is causing the problem. Not sure what type of angle sensor used but since the control module is not showing an error code the problem may only be minor. Has this light come up ever since you had the steering wheel replaced?

02_FNE Community Regular

02_FNE

Posted
Posted
It maybe your steering wheel that is causing the problem. Not sure what type of angle sensor used but since the control module is not showing an error code the problem may only be minor. Has this light come up ever since you had the steering wheel replaced?

not sure mate, i got the car with this steering wheel already in it.. as far as my memory recalls its always done it..

i thought it was strange that it doesnt seem to change the actual steering at all..

my understanding is that that brand of steering wheel is a nissan owned company or brand or something along those lines..

steve12 Explorer

steve12

Posted
Posted

There are a few threads on this site that talks about the HICAS light coming up after steering wheel/BOSS has been replaced. I think they also say that it only comes up after long straight driving as is done on the highways. The problem in your car should be easily sorted as the symptom is easily replicated.

Buy!

  • 2 months later...
  • 1 month later...
Samuel Leonard Rising Star

Samuel Leonard

Posted
Posted
hey ummm i have a question

my HICAS lights turns on

EVERTYTIME , at the exact distance of 10km or so of driving

i time it the spot where i usually go to work n back home

it always turns on at the same area.

so what's wrong with it?

HICAS isn't really a major problem is it?

cheers.

SAME HERE! no idea what it is though? the diagnostic never works for me. i'm assuming it's the steering angle sensor because i can't enter the diagnostic. i'd assume the steering angle sensor is what puts it in diagnostic mode with the left right turns and the brake pumping. when you exceed 80 k's does your steering wheel turn one way slightly and then correct itself when you go back below 80? mine does. until the light comes on. then it stops...

jrm Veteran

jrm

Posted
Posted
SAME HERE! no idea what it is though? the diagnostic never works for me. i'm assuming it's the steering angle sensor because i can't enter the diagnostic. i'd assume the steering angle sensor is what puts it in diagnostic mode with the left right turns and the brake pumping. when you exceed 80 k's does your steering wheel turn one way slightly and then correct itself when you go back below 80? mine does. until the light comes on. then it stops...

Steering wheel 'rolling over' at speed (increasing as speeds pass 60kph) is what happened on my car when the steering angle sensor was mis-aligned with the wheels.

If you cant answer the diagnostic mode at all - sounds like your steering angle sensor isn't working though. Do you have an aftermarket boss? Nissan dealers with CONSULT should be able to get into the HICAS diagnostics and pinpoint exactly what's wrong (that's what I did).

  • 3 weeks later...
  • 1 month later...
SiR_RB Grand Master

SiR_RB

Posted
Posted

i did the test on my r32 gtr and i got 4 quick short pulses followed by the hicas light staing on for afew seconds...

then after that i kept my car on and still in the diagnostic mode, and it did 4 quick pulses followed by the hicas light staying on for a few seconds

what did it pick up as been the fault ??

the hicas is giving me the shits i need to sort this out ASAP !!!

hope someone can help me !

thanks

Munkyb0y Grand Master

Munkyb0y

Posted
Posted (edited)

someone have a look at my thread and see if you can offer any advice. much appreciated.

http://www.skylinesaustralia.com/forums/Hi...ng-t312556.html

i'm thinking hicas ecu may be faulty. it has the trademark 3 capacitors with a very slight stain below them that may indicate some previous leakage.

Edited by Munkyb0y
  • 2 weeks later...
  • 5 months later...
  • 4 weeks later...
axe s Experienced

axe s

Posted
Posted
Steering wheel 'rolling over' at speed (increasing as speeds pass 60kph) is what happened on my car when the steering angle sensor was mis-aligned with the wheels.

If you cant answer the diagnostic mode at all - sounds like your steering angle sensor isn't working though. Do you have an aftermarket boss? Nissan dealers with CONSULT should be able to get into the HICAS diagnostics and pinpoint exactly what's wrong (that's what I did).

Must be a different problem with mine.. it has had the problem since i bought the car (with standard steering wheel) and still has it with my after market one..

might be a dodge connection somewhere..

  • 1 month later...
R32Rana Apprentice

R32Rana

Posted
Posted
My problem, which I've had no luck in getting anyone to know what I'm on about:

Sometimes when I turn on my car (not all the time, it didn't do it for around 3 weeks but now it's about every third time I turn it on), the HICAS light stays on. Solid. The whole time it's on, it feels like I have no power steering, eg. the wheel is sluggish and hard to turn.

I've checked fluids. That's all fine there.

I've got a MOMO steering wheel, but the HKB boss kit (HKB = HICAS compliant), so there's no problems there. If there was a problem there, it'd be permanent, not just every now and then.

Anyone got any ideas? I'll be performing a diagnostic this weekend, so I guess I'll post up the results of that then rip the car apart till I can find it. Then lock the damn thing down anyway.

Hey all,

Ive got the same problem where once the HICAS light is on the steering becomes very heavy but after I switch of the car and go to switch it on again all my electrics fail there is a wire that got fixed by an R.A.C man and once i move that around the electrics come back on and there is no more HICAS light on this is only recent and is becoming more frequent.

Im not sure whats going on with the car but if anyone knows of any solutions would be greatly appreciated

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