Disconnect the earth cable from the battery.
Attention. This erases the records in the memory of the on-board computer. In particular, fault records and radio code. Before disconnecting the battery, read the contents of the section «Removing and installing the battery».
Remove upholstery in footwell, remove safety switch (thermal relay).
Remove the floor covering and take out the corresponding machine. Insert a wire or similar tool into the hole on the back of the machine and press it down. Thus, the machine turns on again.
Check the machine with an ohmmeter. The resistance between the flags should be 0 ohm. Otherwise, replace the machine. When buying a machine, pay attention to the current strength for which it is designed.
Set the machine in place.