Ford Mondeo Alarm

Mondeo Alarm Issue

The first thing to do is locate the alarm module and the various parts that make up the system. If you look under the steering wheel, just to the right of the accelerator pedal you'll find the alarm module. It’s labeled "B" in the image below and you may have a large silver box in front of it.

If your alarm module is not allowing new remote key programming:

Effecting a large number of control modules, although mainly Mk2 - the module collects static electricity down the aerial wire. Over time this stops the system from recognising the existing code from the IR key fob leading the owner to attempt reprogramming (which is also not possible with static on the aerial). There is no real solution for this problem although a temporary fix can be done - unplug all three (in some cases just two) connectors going into the alarm/control module, leave for between 10 and 15 minutes to allow the static to dissipate. Reconnect and reprogram the remote. The immobiliser system stores its code on memory known as ROM which is unaffected by power loss and therefore will be unaffected and should NOT need to be reprogrammed.

This fix will last for an undetermined period of time - normally it recurs after a couple of months, although this can be extended by following the instructions for extending range below

Extending the range of the Mk2 remote central locking:

Mk1 and early Mk2 cars use IR central locking which can't be extended, however later type RF locking (see key types to determine which one yours is) can be in some cases. You should be able to lock / unlock the car from a good range - about 100 yards. If your car suffers from poor range then this could be due to the aerial cable being curled. Find the alarm module and check the two connectors coming from it - on one should be a solid orange cable - this is the aerial and you'll see it doesn't terminate anywhere. It should be straight and uncurled although often when the car was assembled the cable was wrapped up causing signal loss. Straitening this cable and attaching the end to the highest possible point should dramatically increase the range, when straitening the cable try to keep it from touching anything - the sound proofing especially. This reduces the amount of static electricity that can be transmitted to the aerial cable.

Re-Programming

Radio Frequency Programming Instructions:

• Insert the ignition key and turn from position II (Ignition) to position 0 (All off) and back four times within three seconds.

• Remove the ignition key. The locking control system is now in "learn mode" for the next 20 seconds and the red warning system LED (By the clock) stays on continuously to indicate this.

• During the 20 seconds press one of the transmitter buttons. The remotes signal and code number is learned by the locking module and is indicated by flashing the warning system LED.

• Wait until learn mode times out (20 seconds) or switch the ignition back to ON.