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Car drives fine, Hicas light doesn't come on immediately when turning the car on, only after driving for 1/2 hour or so. The power steering fluid level is also fine. Any idea what the problem could be, as it only occurs after driving for a while?

Chris.

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Sorry to state the obvious but you have run HICAS diagnostics haven't you?(just that you didn't mention it)

if you haven't read this! (click on it)

http://www.powerlink.co.nz/%7Egraeme/faq/index.html

and yes aftermarket steering wheels that are fitted with out the special HICAS boss will show a fault!

MEGA

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croat,

The HICAS light's only function is to let the driver of the vehicle know that there is a fault with the HICAS system, basically it will light up in general driving when the system has a fault eg: low fluid in the power steering (R32 have reservoir in boot) ,any electrical connections for the HICAS can be dirty and also a number of sensors that can fail (vehicle speed, steering angle, engine speed........)

Also Note that having an after­market steering wheel fitted without the proper HICAS boss adaptor can also cause the HICAS system to show a fault.

The HICAS light will also display the code for the fault after diagnostics has been run.

MEGA

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Originally posted by MegaGTS4

... power steering (R32 have reservoir in boot) ...

Mega,

The reservoir in the boot is, I'm pretty certain, only there on AWD models (GT-R. GTS4), and its for the ATTESSA 4WD system.

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