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Re: Renault Scenic II - Access the resistor pack in 5 mins.
Just a note about preventative maintenance on the resistor pack connectors.
The main reason for burn-ups on the connectors is that over time the pins and sockets get dirty and corroded and instead of making good contact and passing all the required current by the fan, they produce the equivalent of a resistor, and this in turn heats up causing all the arcing and sparking between the contacts.
At the first sign of an intermittent fan, or it not working as expected at the correct speeds, disconnect the multi-way connector and clean the pins with some emery paper, and the sockets with a very thin flat needle file with a tapered end. This will extend the life of the contacts and restore correct working, as long as the resistors on the pack are still OK.
It's rare to get the actual resistors in the pack to fail; if they do they would normally go open circuit and stop the fan altogether; the main cause of failure is the connectors.
Of course it you are handy with a soldering iron you could cut out the connector altogether and solder the wires directly on the the pins of the resistor pack taking care to insulate them at the pin end with heat-shrink or Hellerman sleeving. This would make the whole system more reliable. I used to do this regularly with Mk3 Escort rear lamp clusters which were notorious for going intermittent with corroded connectors.
Mike; retired Electronics Engineer.
Currently in Repairman44's garage:
Renault Scenic Expression 2003 Red