information i found on a website that yous might find useful 
Saxo
Fault: AC or heater blower motor not working, along with heated rear window.
Cars involved: All vehicles.
Reason: Problem with ignition switch contacts.
Solution: Inspect the F2 fuse of 25A at the fuse box or relay plate 1 and the AC or heater blower motor relay supply coming from the ignition switch.
Change the ignition switch if damaged.
Fault: Engine stalling and engine revolving too much on idle.
Cars involved: All vehicles having 8V engines.
Reason: Problem with Idle Speed Control (ISC) actuator.
Solution: Change the ISC actuator.
Fault: Engine misfires and does not run steadily.
Cars involved: All vehicles having coil pack with two ends.
Reason: Ignition coil not working.
Solution: Change the ignition coil and spark plugs.
Fault: Vehicle not driving properly.
Cars involved: All vehicles having SL96 1 or SL96 9 Engine Control Module (ECM).
Reason: The Engine Control Module (ECM) stops working due to problem with ignition coil.
Solution: Inspect the label showing the ECM model type and install amended ignition coil. Change or repair the ECM if required.
Fault: Engine will not start. Coded keypad lights come on or start to blink. The immobilizer is on but the concerned parts have no defects.
Cars involved: All vehicles.
Reason:Too much engine activity results in damage to engine wiring harness underneath.
Solution: Inspect the engine mountings and fix the wiring harness.
http://www.bba-reman.com/content.asp...technical_help
Saxo
Fault: AC or heater blower motor not working, along with heated rear window.
Cars involved: All vehicles.
Reason: Problem with ignition switch contacts.
Solution: Inspect the F2 fuse of 25A at the fuse box or relay plate 1 and the AC or heater blower motor relay supply coming from the ignition switch.
Change the ignition switch if damaged.
Fault: Engine stalling and engine revolving too much on idle.
Cars involved: All vehicles having 8V engines.
Reason: Problem with Idle Speed Control (ISC) actuator.
Solution: Change the ISC actuator.
Fault: Engine misfires and does not run steadily.
Cars involved: All vehicles having coil pack with two ends.
Reason: Ignition coil not working.
Solution: Change the ignition coil and spark plugs.
Fault: Vehicle not driving properly.
Cars involved: All vehicles having SL96 1 or SL96 9 Engine Control Module (ECM).
Reason: The Engine Control Module (ECM) stops working due to problem with ignition coil.
Solution: Inspect the label showing the ECM model type and install amended ignition coil. Change or repair the ECM if required.
Fault: Engine will not start. Coded keypad lights come on or start to blink. The immobilizer is on but the concerned parts have no defects.
Cars involved: All vehicles.
Reason:Too much engine activity results in damage to engine wiring harness underneath.
Solution: Inspect the engine mountings and fix the wiring harness.
http://www.bba-reman.com/content.asp...technical_help
