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Hicas Problems

victory#1

By victory#1,
in General Maintenance

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victory#1 Rookie

victory#1

Posted
Posted

Hi theres probably about million posts on hicas issues and i have read some of them but most the problems that i have read about are not too similar to my issues

My hicas light is on almost all the time except for when the car is idling or if your cruizing at a constant speed

But if its idling and the high beam lights are on or when you gradually slow down or you hold the brake on then a clunking noise starts towards the back car around the diff also as you turn the steering wheel on 45 degrees each way you get a hard spot and it click towards the front and then feels normal the rest of the way.

Apparently the previous owner did bleed the power steering fluids to get the air out but it made no difference.

If any legend can help me i would appreciate it greatly

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260tech Proficient

260tech

Posted
Posted

Hi Nathan, feel your grief. My hicas light is on permanently after a wheel alignment. Did the hicas test with the forward reverse brake pumping steering wheel thingy as described in the how to section. Got a code back that pointed to one rear wheel sensor being dodgy. Can't remember if left or right now, time passes. This result was repeatable over several test runs at different time when frustration set in. Decided easiest way was to swap sensors over to see if fault went from left to right, had a look around underneath, no visible damage/broken wires/loose or disconnected plugs, swapping sides was looking a bit tricky so decided I cbf'd. Read somewhere that hicas goes to default mode (does nothing) when warning light comes on. Maybe one day I will get round to getting it fixed when I find someone who knows the system or if some knowledgeable soul here says this is a serious issue that should be rectified asap.

However; Quote or when you gradually slow down or you hold the brake on then a clunking noise starts towards the back car around the diff also as you turn the steering wheel on 45 degrees each way you get a hard spot and it click towards the front Unquote. These issues should be checked soonest IMHO.

Cheers, let us know how you went.

GW

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260tech Proficient

260tech

Posted
Posted

Hey Nathan, just in case you haven't got onto the check procedure, see attached, to check out the Hicas you need to do the test procedure to determine what the Hicas computer thinks is wrong. Or get onto someone with Consult OBD II(?) ~ Nissan dealer maybe. There are a number of sensors/conditions that could give you a warning light, it could be triggered by one or more than one error code OK.

Cheers GW

Hicas diagnostic procedure.docx

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