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R33 Gtst Hicas

Calvz86
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Calvz86 Enthusiast

Calvz86

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Hi thx for the reply, it comes up after 30 minutes regardless of speed. Haven't had a look, don't know where to look as I just got the car 3 days ago, wouldn't know where to look, and I don't really wanna take to mechanics just incase it's nothing and they'll overcharge .. Anyway hopefully u or someone mite know why it's doing that.. Cheers

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jrm Veteran

jrm

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Diagnostics are the easiest way to figure out what's wrong - I had some recent HICAS probs that I had to dig into the R34 Workshop manual and figure it all out (in my case it was a mechanic who had removed sensors and not replaced them properly - they're spring-loaded when mounted into the steering rack).

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RicsR33 Enthusiast

RicsR33

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i have the same problem, but i cant seem to enter into diag mode since my steering wheel is aftermarket, and isnt sitting dead straight. But then i have read that if the wheel isnt sitting straight it can cause the hicas to malfunction thinking the car is endlessly turning slightly.. but im not to sure.

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jrm Veteran

jrm

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i have the same problem, but i cant seem to enter into diag mode since my steering wheel is aftermarket, and isnt sitting dead straight. But then i have read that if the wheel isnt sitting straight it can cause the hicas to malfunction thinking the car is endlessly turning slightly.. but im not to sure.

With your situation, with an aftermarket steering wheel - it could be that your boss isn't one that is HICAS compatible - not all of them are. In that situation, the boss won't be activating the steering wheel angle sensor so the car doesn't know what angle you're steering at. (And of course, cant detect your steering movement to enable HICAS diagnostics).

I've also previously run into a situation where (with a factory wheel) my steering angle sensor was off - but for me, it was actually the entire rack that was out, and had to be re-adjusted so that the steering wheel sensor registered centered properly.

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RicsR33 Enthusiast

RicsR33

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With your situation, with an aftermarket steering wheel - it could be that your boss isn't one that is HICAS compatible - not all of them are. In that situation, the boss won't be activating the steering wheel angle sensor so the car doesn't know what angle you're steering at. (And of course, cant detect your steering movement to enable HICAS diagnostics).

I've also previously run into a situation where (with a factory wheel) my steering angle sensor was off - but for me, it was actually the entire rack that was out, and had to be re-adjusted so that the steering wheel sensor registered centered properly.

Hi Jrm

Ive had the wheel off previously and the boss is HICAS compatible, but couldnt crack the centre nut so i didnt straighten it up. I hope it is only the wheel and not my rack.

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