Hello,

I recently bought a Ford Focus Mk3 where the former owner disabled the warning light on the dashboard (it lights up when I start the car for a few seconds) and the warning that the belt is not on.
I have tried all the variants found, with disconnection/connection 4/9 times and it does not reactivate.

Is there any way to reactivate it?

It's the exact same process that you use to disable it. The operation simply "toggles" the belt warning from one state to the other.

On 4/6/2010 at 3:46 PM, starfield said:

How to activate/deactivate chime and warning light for seat belt

Preparation:

1. Apply the parking brake.

2. Select neutral

3. Turn the ignition switch to the 0 position.

4. Close all the vehicle doors from the inside of the vehicle.

5. Unbuckle the drivers safety belt.

Deactivating/Activating:

1. Turn the ignition switch to position II. (Do not start the engine).

2. The airbag warning indicator will extinguish within 10 seconds.

3. NOTE: Step 3 must be completed within 60 seconds or the procedure must be repeated.

Buckle then unbuckle the safety belt nine times, ending with the safety belt unbuckled.

4. The safety belt warning indicator flashes three times to confirm the belt minder status change.

5. To activate the belt minder, repeat Steps 1 through 3.

6. After confirmation, the deactivation/activation procedure is complete.

I have tried this and it works...

 

it s doesn t work, i tried already

i disconnect battery for 10 seconds and it s works again