never heard of lights indicators and wipers working by ecu before. are they all autimated working off sensors, or do you have manual switches? all 3 items work on relays. try looking at the relays the board and also wiring that connects them. you may have loose wires shorting them out, also check that the earth cables are all connected and tight. If it is the ecu and its only these 3 items that fail try wiring them up the old fashioned way like they did before ecu's. a wiring diagram for an older clio would help.
calibra130, September 2010