hi mate,if the card operates the rear doors obviously its doing wot its supposed to so you problem will either be the actuating solenoids in the doors or possibly wiring.... i worked for renault for about 8 yrs and finished only recently...check the wires/connections in the front door pillars where the wiring loom comes out of the doors....its common for connection or broken wire problems in these areas ok....hope this helps
paul, April 2009