The Mégane II Owners' Club

This problem is now fixed, so I will post the problem and solution here in case anyone else comes across this in the future. Last year when I tested the wiper motor and wires going to it, I made the mistake of assuming that different wires should have voltage, depending on high or low speed wiper sw...

Hi guys, resurrecting this post from last season. This wiper problem has returned this season under the same description, caused after the same weather pattern: Cold and Wet. Last season, this problem seemed to correct itself. The only real action I took was to take out the UPC and UCH and dry them ...

Hello Peter, I've had some electrical issues too after lots of rain. These cars are heavily Electrically-Engineered, with 3 separate main computer components working together. -First thing to check is the voltage at the battery, you'll need around 12.4volts at minimum to start the car. The battery s...

Thanks Bob! I'll definitely look into finding a company which can repair the computers. For this problem, would I send the ECU, the UCH or the UPC for repair? Vehicle inspection is due in the next few weeks, and my temporary fix won't be good enough for the Austrian authorities. So I've got to get t...

Make sure you have good battery in the key card. It needs to transmit to the car in order to work as it should. With a dead battery, it will still work when you put it in the key reader. This keyless-go system is supposed to mean that you can leave the key in your pocket or bag at all times. Heres h...

It turns out I was wrong. charging voltage was tested again and it was stable at 14.5v. I disconnected the car battery and let the UCH circuit board rest on my desk beside the fireplace for a week to hopefully dry out and dissipate any static. Installed the thing again this morning and magically the...

just in case anyone is still interested in this: I've found the UCH for this Left-side drive car. It's directly behind the interior fuse box: must remove the lower dash from under the steering wheel, remove the Fuse box and an air duct, carefully unclip/unscrew the UCH and remove wiring. I've taken ...

Bob, that’s a HUGE help, thanks! That means I have not yet found the UCH. I can remember that the wipers would make a click from the center console when I would switch them on. That click is gone now. So then the fault could be in the UCH or the wiring to it. I will hunt it down and knock on it! Unf...

Thanks Bob and Fred! Very useful information here. I was getting confused by the new terms, but it sounds like the term "Interior Multiplex" is the same as UCH, which is the Interior fusebox. Also it sounds like the term "engine Multiplex" is the same as UPC, which is the engine ...

i think the only part coded with the key is the Immobiliser. the reader itself only carries the message. should be fine as a direct swap.
konrad

Hi, according to the almost useful Haynes manual, there is a relay in the passenger fuse box fed by fuse F1R (20amp). It doesn't give it a number though. With all that you have checked, if it's not that, the interior multiplex has to be suspect. ( give it a tap ) this controls the wipers. Well done...

**The issue is that the wiring to the wiper motor does not get power** Its a perfect ski season in the Alps of Austria and I don’t have any wipers for my windshield! Roads are wet at all times so the other drivers send the road muck all over the windshield and I can’t see. :shock: Problem Introducti...

Hello to the Group! I've lurked through this forum for months, but have never registered until now. Very much useful information in these pages, thanks everyone for making that happen! Out of respect for the group, I am making a quick introduction before I start posting. I'm an American bloke living...