remove the cover under the steering wheel and about 6" down from the barrel will be a plug to unplug the ignition barrel when the car will not turn off try unplugging the barrel if the car cuts out it's more than likley the barrel if it continues to run the problem lies else where. The mk5 escort in general suffered from crap fuse boxes i have changed many of these in the past. i would look at the fuse box next if you have no luck with relays.