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Hicus Light Pops On After 5 Mins Of Driving

ClutchBurndout-:(
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ClutchBurndout-:( Grand Master

ClutchBurndout-:(

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as the title says, i have my hicus still in and hooked up to stock etc, but the hicus light on my dash turns on after 5 mins of driving and dosent turn off unless the car turns off, what would be causing this? and how do i fix it? does the light mean my hicus is buggered?

cheers

PM-R33 Grand Master

PM-R33

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What was the last thing you did to the car before the light started coming on?

It means it is getting an error of some sort and going into its failsafe mode. You need to work out what is causing the error.

I once had it happen when I shorted the speed signal wire, kept happening. Simply reset the factory ECU (disconnected the battery over night) and hey presto was fine again.

bubba Grand Master

bubba

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Have you taken your steering wheel off lately? if it's not quite on straight, after a few minutes of driving HICAS will think you're driving in a really big circle and throw up an error..

Does your speedo still work?

ClutchBurndout-:( Grand Master

ClutchBurndout-:(

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What was the last thing you did to the car before the light started coming on?

It means it is getting an error of some sort and going into its failsafe mode. You need to work out what is causing the error.

I once had it happen when I shorted the speed signal wire, kept happening. Simply reset the factory ECU (disconnected the battery over night) and hey presto was fine again.

its been doing it since i got it, ill try disconnecting the battery, both terminals?

Have you taken your steering wheel off lately? if it's not quite on straight, after a few minutes of driving HICAS will think you're driving in a really big circle and throw up an error..

Does your speedo still work?

i havnt, but ive had the car for about 3 weeks so i dont know what the last ownder did,but how would it know that the steering wheel is off center? its only alen screws...

speedo is fine!

Munkyb0y Grand Master

Munkyb0y

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Posted (edited)

the way it knows is there's a hicas related clock spring type wheel behind the steering wheel that turns with your steering wheel. so it keeps track of the angle. 'steering angle sensor'

but i dont know why ppl keep saying check if your steering wheel is off by a tiny bit. coz the splines dont allow you to be off by a tiny bit. it's very noticeable if you're off if only by one tooth.

i suggest taking your boss kit off and check that it has the appropriate holes in the back for the steering angle sensor to lock into. also, check that the sensor is still there.

Edited by Munkyb0y
bubba Grand Master

bubba

Posted
Posted

There is a steering angle sensor behind the boss, HICAS uses steering angle and speed input to decide what it's doing. Even one tooth out will freak the system out.. I'm talking teeth of the splined shaft that the boss goes on to, not the 6 bolts that hold the steering wheel to the boss.

bubba Grand Master

bubba

Posted
Posted

The sensor is a big white looking disc thing with two posts standing proud of it... really hard to miss.. as soon as you take the boss off there it is.

But +1 for binning HICAS. You don't have as much of a weight saving in the R33's but I hate HICAS and removing it gave me more confidence in the abilities of the car as opposed to not being entirely sure what the back end was going to do..

Fortunately, my Stagea came from the factory without it :)

ClutchBurndout-:( Grand Master

ClutchBurndout-:(

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The sensor is a big white looking disc thing with two posts standing proud of it... really hard to miss.. as soon as you take the boss off there it is.

But +1 for binning HICAS. You don't have as much of a weight saving in the R33's but I hate HICAS and removing it gave me more confidence in the abilities of the car as opposed to not being entirely sure what the back end was going to do..

Fortunately, my Stagea came from the factory without it :)

ok an how is the disc supposed to sit? or am i just making sure its in there?

also, while where on the topic, how hard is it to bin the hicus? is it as simple as unbolting and unpluggin the wires and putting in the bar? or will i need to screw around with the wireing etc, and will i need a wheel alignment? how hard is it? whats involved?

Trozzle Grand Master

Trozzle

Posted
Posted

Mine did this. Would always come on just outside of Sydney on the way back to Canberra, but never any other time....inclusive of the way TO Sydney :S

I personally just pissed it off with a lock bar when I got my suspension etc done, but that's obviously not fixing the problem (unless of course you agree that HICAS itself is the problem in the first place)

nisskid Grand Master

nisskid

Posted
Posted
His is an R33.. I know the 32 will light up the HICAS light if the fluid level is low but doubt the R33 does the same..

yeh i thought it still did as it simply doubled as a hicas/steering fluid warning. im probably wrong, i dont like to meddle in r33 things usually lol

do r33's have a separate warning light for the steering fluid sensor?

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