Jump to content
SAU Community

Recommended Posts

Hey guys did the hicas diagnostics on my car,

Came up with

(according to the thread in tutorial/DIY sect)

21. Vehicle speed sensor not present

I saw a guy replaced one in his R32 behind the dash, but is this where the hicas would get its reading from?

Is there another sensor somewhere the hicas reads?

also where would i get one of these to replace it?, or how can if fix it (if its repairable)

Cheers in advance

85URK

Not sure about the R33 GTR, it might be similar to the R32 GTR as I went through a few diagnostics with mine.

The R32's have a Steering wheels sensor and the brake fluid sensor, which can trigger off the HICAS Light.

What's wrong with your HICAS?

Does it only come on when the car is started up, whilst driving, turning the steering wheel..?

Not sure about the R33 GTR, it might be similar to the R32 GTR as I went through a few diagnostics with mine.

The R32's have a Steering wheels sensor and the brake fluid sensor, which can trigger off the HICAS Light.

What's wrong with your HICAS?

Does it only come on when the car is started up, whilst driving, turning the steering wheel..?

No i have no hicas light on, but when driving along sometimes the car will start turning by itself then straighten up and repeat again. and this is the only fault that came up on the hicas diag.

So maybe hicas system is getting a dodgey speed reading from the sensor causing it to play up.

No i have no hicas light on, but when driving along sometimes the car will start turning by itself then straighten up and repeat again. and this is the only fault that came up on the hicas diag.

So maybe hicas system is getting a dodgey speed reading from the sensor causing it to play up.

Interesting...

Wheel alignment maybe?

Turning itself?

Meaning if you drive straight the car will start to pull towards one side..?

HICAS is design so when the car is traveling at a high speed (80km/h +) I think, the rear wheels will turn in 1 full degree in the opposite direction of the front wheels, BUT that is only when going around a large bend in the road or hammering it through a corner...

Just from speculation / guessing...

I still believe there is a Steering Wheels Sensor in the R33 GTR's.

Check your Steering Wheels Sensor, it maybe out of alignment and the HICAS computer thinks the car is turning but it is actually not at all...

Interesting...

Wheel alignment maybe?

Turning itself?

Meaning if you drive straight the car will start to pull towards one side..?

HICAS is design so when the car is traveling at a high speed (80km/h +) I think, the rear wheels will turn in 1 full degree in the opposite direction of the front wheels, BUT that is only when going around a large bend in the road or hammering it through a corner...

Just from speculation / guessing...

I still believe there is a Steering Wheels Sensor in the R33 GTR's.

Check your Steering Wheels Sensor, it maybe out of alignment and the HICAS computer thinks the car is turning but it is actually not at all...

Yeah it happened when i was travelling along hway mostly at about 100km/h or over.

Yeah the car pulls to one side suddenly then straighten's up again then does it again. then it will drive normally for ages, it does it randomly.

i have really only had it do it to me a few times as i hardly drive the car for long periods of time on hways etc.

and since the hicas code came up with vehicle speed sensor i was going to start with that, but im not sure where it was located for the hicas?

I have had the car fully wheel aligned and balanced. it has coilovers, so maybe they are not set the same all round or something, wonder if that would cause it to pull to one side or affect the hicas reading?

also Where is the steering wheel sensor located?

on the steering rack somewhere?

Yeah it happened when i was travelling along hway mostly at about 100km/h or over.

Yeah the car pulls to one side suddenly then straighten's up again then does it again. then it will drive normally for ages, it does it randomly.

i have really only had it do it to me a few times as i hardly drive the car for long periods of time on hways etc.

and since the hicas code came up with vehicle speed sensor i was going to start with that, but im not sure where it was located for the hicas?

I have had the car fully wheel aligned and balanced. it has coilovers, so maybe they are not set the same all round or something, wonder if that would cause it to pull to one side or affect the hicas reading?

also Where is the steering wheel sensor located?

on the steering rack somewhere?

Yeah right... Ok.

Sure, start with the Vehicle Speed Sensor.

Again I am unfamiliar where the HICAS is in the R33 but in the R32 there is a Unit in the boot, under the rear parcel shelf in between the rear speakers... Take a look and see...

The Steering wheels sensor is located behind the boss kit, inside the unit where your indicator stalk is just before the dash... Again for R32 GTR is like that, R33 should not be too different.

Can your mechanic help you out too?

Yeah right... Ok.

Sure, start with the Vehicle Speed Sensor.

Again I am unfamiliar where the HICAS is in the R33 but in the R32 there is a Unit in the boot, under the rear parcel shelf in between the rear speakers... Take a look and see...

The Steering wheels sensor is located behind the boss kit, inside the unit where your indicator stalk is just before the dash... Again for R32 GTR is like that, R33 should not be too different.

Can your mechanic help you out too?

yeah we have been having a look at it, but havent managed to figure it out yet. il try take a look at it when i get a chance. been busy lately, and car still drives fine just except for that problem. see how i go. but if anybody can tell me exactly where sensors etc are that would be great. Thanks for your help, much appreciated.

Daz

yeah we have been having a look at it, but havent managed to figure it out yet. il try take a look at it when i get a chance. been busy lately, and car still drives fine just except for that problem. see how i go. but if anybody can tell me exactly where sensors etc are that would be great. Thanks for your help, much appreciated.

Daz

No worries man!

If you can't sort it out just get rid of the HICAS System all together, LOL!

A lot of ppl hate it and it really is just a parking aid when you try to park your car...

All the best and let us know how you go!

:P

Isnt that where the hicas plug is for steering wheel? behind steering column covers, coz my hicas light doesnt stay on at all, and it does light up on the dash when u first turn key on when all the other lights light up.

Then it goes away after engine start up, so this would mean that the steering wheel is connected properly etc, it is a 96 with a series 3 steering wheel on it, it was like that when i got it. but this shouldnt matter much unless the sensor is stuffed, which would inturn make the hicas dashlight, light up shouldnt it?

There could be a HICAS Plug, near the Steering wheel sensor... It probably all interlinks together...

There have been a few HICAS issues with aftermarket steering wheels, but you saying you got a Nissan Series 3 wheel... It should not make too much difference as it is a Nissan Factory steering wheel.

Yeah if the HICAS light was on and stayed on after starting the car, then there will be a bit of a problem, but since it switched off for you after starting it up, there must be just a little hiccup in the system...

Also, try cleaning the Steering Wheel Sensor, that helped me, from memory my mechanic used some WD40 and then compressed air to blow dry it.

OK, here is what I did to isolate the HICAS problem that I had...

Check Powersteering fluid

Check Tires

Check Wheel Alignment

If HICAS light is still on,

Run a diagnostics

Cleaned out steering wheel sensor, it helped but the HICAS light was still coming up when I did a full lock left turn, before cleaning it out it was as soon as I turned the wheel slightly left.

Run Diagnostic again

The diagnostics was be able to read the degrees of the steering wheels sensor, when the steering wheel is at centre position, it should read 0 degrees, but it did not, it was about 30 to 50 degrees out (from memory), this was after the wheel alignment, so my mechanic re-adjusted the tire rods to take everything back to 0 degrees.

This might help to solve your problem so the car does not pull to one side...

As for the Vehicle Speed Sensor... I might have to ask my mechanic when I see him tomorrow and ask him if he can answer that one.

ok cheers.

yeah, well its all good to have the self diagnosis of the hicas system and tell you what the flashes mean, but If it comes up like the vehicle speed sensor, its good to know where to find them to be able to test them etc

That would be great if u can speak to your mechanic about it, u never know, thats what forums are for, to share the wealth of information out there.

Ok just had a quick chat to him...

Judging from your 2nd post, it sounds like a Steering Wheel Sensor / Steering Angle Sensor (Same thing).

The Vehicle Speed Sensor... I think it is near the gear box or that area... But my mechanic he has never changed one cuz that sensor hardly plays up...

Also I remember him saying that if the Vehicle Speed Sensor is playing up, your speedo will not work / read the speed you are going, so you won't know how fast you are driving.

The HICAS light can relate to a few areas in the car,

Power Steering Sensor, to check your Power Steering Fluid.

Steering Wheel Sensor / Steering Angle Sensor.

Wheel Alignment, car is not driving straight.

Just get your mechanic to re diagnose the HICAS and see how you go...

:yes:

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

    • That is correct. I'm using a modified ABS ring and a ZF speed sensor on my rear diff for speed input. I'm running a Haltech ecu. 
    • Been busy with the newborn. We originally thought we were going to go for a third, but we're good with two lol. He's starting to actually sleep now so I've had some energy to work on the car. It's been parked away in the garage since late November due to winter.  I went ahead and redid all my head oil drains. I originally had my front and rear head drain going into the same pipe but have since split them up. I also added an Ethanol content sensor to get ready to run E85 this summer. Tossed it on my return line. Sensor sits nicely under my intake manifold.    I also have a lot of parts that came in for my rear end. I'll be swapping over to a 3.3 final drive and doing the GK teck anti squat mod. While the rear subframe is off, I'll also change every bushing. We're planning on buying another house soon with the condition that I get at a minimum a 2 door garage, so I'll wait to have more room for this. Now onto the strange things that recently happened... After changing the lower rad hose (It had been sitting in my cabinet for well over a year and was the last hose I had to replace), I let the car idle in the garage to bleed my coolant. After running for a few minutes, it started missing. Got much worst within a minute or two and then stalled and would not restart. My crank sensor decided to crap itself. No damage, no explanation, just died. I went ahead and replaced it with another ZF sensor but the heavier duty stainless model with a shield. Tossed that in and started right up. Has anyone else seen this? I hate when things fail without cause. Luckily this was a blessing in disguise... This lead me to recheck my timing. It seems I may have had a beer or two the last time I had set my TDC angle as I was off exactly 5 degrees... I miscounted a line haha. I was running 5 degrees less then commanded. It's a little embarrassing but helps explain why my dyno operator seemed to think I should be making more then 478rwkws.        
    • Sharing results from recent Liberty Walk R35 GTR, since they are still considered as somesort of a V36 Skyline. We do them turbos too. This are high flowed SS-1 models with ball bearing conversion done.  Car have managed to pull 485awkws @ 20Psi so far pushing limitations of factory built engine. The build list for R35 GTR enthusiasts as follow : HyperGear high flowed stock turbos in SS1 (G25-660 specs) Custom titanium intake pipes. Vspec performance titanium front pipes. Vspec performance 4" titanium exhaust. Upgrade fuel pumps. 1200cc injectors. Ignition coilpacks Hks intake plenum. Hks intercooler piping. Greddy intercooler. Greddy bovs. Top-secret coolant reservoir. Emtron ecu. Straight E85. Built gear box.  
    • Nah no bearings, just slip fit.  Would be a reasonably challenging but not impossible job to modify it to run bearings but I'm hoping that's not necessary as I may have well built one myself if I end up spending hours modifying it!
    • Brumbys with good shells are bloody expensive, I've looked at 2 "cheaper" cars, and walked away from both,  plus after some research spare parts are fairly sparce I'm starting to think that I missed the boat on finding a clean one that is straight (ish) and without alot rust I'm starting to think about a old Hilux as panels and other parts are much more available as they sold tens of thousands of them I use to be indecisive but now I'm not sure
×
×
  • Create New...