I have a problem with the outside temperature system, the indicator on the multi function display is reading much too high, often over scale, ie 2 dashes. I think the sensor is probably ok, it is about 500 ohms changing with temperature. I am trying to trace the leads back to some unit, I have a Peugeot circuit diagram showing the leads going to the "Intelligent Slave Unit", please does anybody know where this slave unit is and what does it look like. Regards Dave Lake