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Discussion Starter #1 (Edited)
please can anybody help me i have a scenic 2 litre 16 valve the problem im having is it wont go in drive and fault code reader says range sensor input circuit code po705 any suggestions also reverse works and goes in limp mode drive cheers shaun the scenic is 2002 plate with the dpo gearbox
 

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The PO705 fault code is generic and non-specific and also may not be Renault specific. Renault use a different protocol in the ECU control systems so not all code readers are compatible.

Also if you posted up the year and gearbox type (e.g. how many forward gears has it) it may invite more useful replies.:)
 

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Might be worth trying the F3 brake band diagnostic trick:

The test is easy to do: start engine, put gearshift in neutral, then open bonnet. Find engine bay fusebox - on right hand side - remove 7.5 amp fuse - don't worry, you can't get a shock. You will then hear a funny whirring noise coming from engine area. Ignore it.

Now get back in car and try engaging Drive. If the problem *is* the F3 brake band, the car will now move forward, because you have engaged 3rd gear. It won't go into any other forward gear and reverse will still work. It is quite driveable like this (the guy who posted this solution originally says he drove around in his for a week before it went in for repair). But beware it will run a bit hotter because the gearbox cannot change up to a higher gear or lock up the torque converter.

If the above works out you can now drive it to a local gearbox specialist and point them at this Renault technical note which details the parts required and how to fix the problem.

http://tinyurl.com/6c5ah8e

Note that you have to carry out the fuse trick every time you restart the car. Put the fuse back in, start the car, into neutral, remove fuse - it's brilliant.

For our 1999 Clio the repair required the sub-frame to be dropped down so the gearbox could be removed - this saved the cost and hassle of draining down the air-con, otherwise apparently the engine can be lifted out.

Not cheap, but saved scrapping an otherwise perfectly driveable car.

Fingers crossed this works and you can get your car fixed.
 
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