Took yesterday a look at the whole cabling system and couldn't find a problem, the pads are still 10mm thick botf front and rear, the sensors are not worn, but I know that the problem comes from the front because I bent a small metal bobby pin and stuck it inside the front loom comimg from the car's sensor connection to make the circuit closed again. I can only think of a front sensor problem, because the pad is good, and the connection from the car's end to the sensor connection is also fine because otherwise when inserting the bobby pin the connection wouldn't have gone closed thus the warning light disappearing
