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Sensors. Of the steering-angle variety! Expertise needed...



  172/A4 Tdi
Hi guys,

Right... Have had ABS/ESP/SERV lights on for a while now and knew it was steering angle related. Have now used a Snap-on machine with live-data to work out the issue.

- With wheels and steering-wheel centred, the steering angle sensor reads -30.00
- Turn the wheel a full turn clockwise (so almost on right lock) and it reads 0.00 (so it's 360degrees of 'real' movement out)
- The wheel still retains it's normal 1.5 turns (ish) to reach lock right or left from the centre position (straight) so I presume the rack/column have been connected correctly.

Basically (if that word can be used..) I need to re-align the sensor so that it reads 0.00 rather than -30.00 !!

Any ideas? Is the pickup for the sensor on the wheel? So could I leave it straight, take off the wheel and spin it anticlockwise 360degrees and then it would read correctly?
Or can I get it recalibrated at a dealer using CLIP?

Also, it seems strange that a full turn of the wheel reads a '30' change rather than a 360deg change? Or does it not work like that? I guess 360 is pointless anyway as it can turn more than that before it reaches full-lock, and the ECU would need to be aware of the lock angle to determine the ESP/ABS response? (otherwise it would click back to '0.00' but you'd really be on lock!)

I hate electrics almost as much as I hate this Clio!!

All help is greatly appreciated!!!

Thanks,

Kirky
 
  172/A4 Tdi
Nah man, billy basic Renaultsport one. The car had an engine change, and the rack was disconnected, then this appeared. I would have assumed the sensor was totally broken BUT the fact it's giving a uniform reading makes me think it is functioning as it should. Although how it ended up that way is a mystery. The wheel wasn't removed, and the rack has the correct movement from lock, to centre, to lock. Maybe the column span 360deg while it was disconnected and then it was bolted back on out of whack.....?
 


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