Cruise control problem

Info on parts and accessories for the Mégane II, what to use and where to buy them.

Moderators: q292u, Ray, AndyAdmin, Stranger

jscho84233
Posts: 6
Joined: Fri Aug 05, 2011 9:32 pm
Currently Drives:: Megane 2.0 VVT Privilege Auto

Cruise control problem

Postby jscho84233 » Fri Aug 05, 2011 9:55 pm

Hi,

I am wondering if anyone has ever replaced the 'R' and '0' control button unit, and how easy it is to do? I was hoping that the unit would just unclip, and not need the steering wheel disassembled?

The cruise control works perfectly well, except for the '0' button. When I press it, I get a "CRUISE CONTROL FAULT" message along with the service light for as long as I press the button. When I release the button the system resets and I get "CRUISE CONTROL --.- MPH" and I can set a new speed. The brake pedal disengages the CC as it should, with the speed stored correctly, which is what makes me suspect the button.

I am aware that all four control buttons operate from the same two wires, with each button applying a different resistance accross the 2 wires, which is then read by the ECU to determine which button I have pressed. I figure that the wiring, including the slip rings, must be OK as the other 3 buttons work OK, again leading me to suspect the button. I see that the '0' button actually shorts the wires so the ECU sees 0 ohms across the wires, maybe the button contacts have a high resistance that the ECU doesn't recognise and throws up the fault.

If anyone has any thoughts, I would be grateful! Many thanks.

joeishmather
F1 Driver
Posts: 1689
Joined: Wed Nov 25, 2009 3:22 pm
Currently Drives:: 57 megane with roof, engine, wheels, doors... All the usual things.
Location: Sheffield

Re: Cruise control problem

Postby joeishmather » Fri Aug 05, 2011 10:08 pm

Both buttons come together, they are very easy to replace, simply remove the airbag and the buttons unscrew and the wires unclip... Simples :-)
Image

jscho84233
Posts: 6
Joined: Fri Aug 05, 2011 9:32 pm
Currently Drives:: Megane 2.0 VVT Privilege Auto

Re: Cruise control problem

Postby jscho84233 » Fri Aug 05, 2011 11:34 pm

joeishmather wrote:Both buttons come together, they are very easy to replace, simply remove the airbag and the buttons unscrew and the wires unclip... Simples :-)


Thanks for the reply... are there any precautions I need to take to remove the airbag? Thanks!

joeishmather
F1 Driver
Posts: 1689
Joined: Wed Nov 25, 2009 3:22 pm
Currently Drives:: 57 megane with roof, engine, wheels, doors... All the usual things.
Location: Sheffield

Re: Cruise control problem

Postby joeishmather » Sat Aug 06, 2011 7:55 am

Disconnect the battery and leave it a while, should be ok. To remove it you'll see a hole in he back of the steeringwheel, push a blunt object in that hole to push a clip that holds the airbag in place while doing this push the airbag upwards from the bottom and it should slide out :-)
Image

jscho84233
Posts: 6
Joined: Fri Aug 05, 2011 9:32 pm
Currently Drives:: Megane 2.0 VVT Privilege Auto

Re: Cruise control problem

Postby jscho84233 » Sat Aug 06, 2011 10:16 am

Brilliant. Thanks for that, I will order the new buttons now.

Cheers!


Return to “Parts and Accessories”

Who is online

Users browsing this forum: No registered users and 4 guests