Just want a few more experienced opinions before I take the plunge and strip the power steering column out.

With the car idling turning the steering wheel a few degrees will produce a vibration and rumbling from the steering wheel.

Loud inside the cabin, no noise when outside the car.

Much more pronounced during low speed turns than when driving at normal cruising speed.

I'm leaning toward the electric power steering column.

Can anyone tell me if I'm on right track.

Cheers,

Thomas

Hi Thomas,

same in City mode ?

BRs, Bernie

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Hi Bernie,

Yeah exactly the same in city and normal mode.

Thomas

Hi Thomas,

the car should drive without EPS; disconnect the power to the controler (or at the motor) and check if the noise is still present or not, this would rule-out the power steering itself from other mechanical issue …

BRs, Bernie

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Good shout seems obvious when you think about it lol.

Can you get to the connector easily?

Just started the brain, thought a bit and resulted in fuse removal … ;-)

BRs, Bernie

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Sounds good I'll have a look through the manual see which one it is.

Here you go Thomas …

BRs, Bernie

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Been away on holiday. Driving car after I came back and power steering light came on and power steering failed.

Switched off and restarted and it cleared.

Got the unit stripped out and on its way to be rebuilt. ?

Hi Thomas,

do you mean you sent it to a repair center or you've fixed it yourself ? What was your finding ??

BRs, Bernie

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Hi Bernie, I've sent it off to a place in Derbyshire called ECU testing.

They let you know what the problem is with it so I'll report back. I suspect the torque sensor is buggered.

There rebuild has a lifetime warranty too which is good.

Thanks for the update Thomas, keep us informed …

BRs, Bernie

Well it turns out that the unit is unrepairable.

Something about a fault code on the ECU that couldn't be cleared. I've got mild hearing loss, couldn't hear the chap on the phone properly.

I've e-mailed them and they're going to send me a copy of the engineers report so I should have more details in a bit.

They're refunding me, and I'm going to buy a rebuilt unit from them for an extra £30.

Not the end of the world.

Will share the report when I have it.

Thomas

Do you have an address for the place in Derby?

http://www.ecutesting.com/

ECU Testing LTD.
Delves Road
Heanor Gate
Derbyshire
DE75 7SJ
United Kingdom


[email protected]

01773 535638
Mon-Fri 9am-5:30pm

Here's the report on my unit. Bought a reconditioned unit, just trying to resolve error light now.

Test condition: FAIL – Fiat Punto power steering control unit failed our test due to fault code C1001 Internal control unit failure causing loss of power steering and the power steering warning light to illuminate.

Root cause analysis: Internal hardware failure.

Countermeasures to root cause:
Replaced internal hardware. Rebuilt sensor supply circuits, rebuilt sensor signal circuits. Rebuilt internal power circuits but fault code C1001 would not clear.

Results: FAIL – Fault code C1001 found within the control unit during testing. After extensive hardware replacements and rebuilding of internal circuits the fault code still does not clear rendering the control unit beyond repair.

Thanks for the update Thomas !!