The vehicle configuration determines the operation of the indicators, so some indicators are present but do not work. Indicators, including signal indicators, always use sensor output signals. You should always take this into account when troubleshooting. For example, the electronic speedometer receives its signals from the vehicle speed sensor (VSS), which is located on the gearbox. Other systems that use the same output signal are, for example, engine control, ABS system, speed control, trip computer.
It is important to always check the functioning of interconnected systems
Therefore, always check interconnected systems - this saves time when troubleshooting. All instruments and control lamps in the Focus combination instrument receive their signals not via wires, but via a foil (board) with conductive strips sprayed on it. Boards vary depending on the scope of the kit and the model. Keep this in mind when repairing and purchasing spare parts.
Your Ford dealer will identify the correct board by the code number in the vehicle's registration document or by its technical documentation. The most minor faults require a new board to be installed: often only the bulbs are defective, or the connectors suffer from weak contacts. In this case, you cannot avoid dismantling the combined instrument cluster.
Stages of work
Disconnect the battery.
Loosen the decorative panel of the combined instrument (arrows) and remove it. To do this, also disconnect the connector on the trunk release switch.
Remove the decorative panel
Unscrew the mounting screws (4) of the combination instrument using a Phillips screwdriver.
Remove the combination instrument. Loosen the mounting plate (1) and disconnect the connector (2) of the combination instrument. Carefully pull the combination instrument past the steering wheel and up out of the opening.
Important: Always keep the device upright or set it aside, otherwise the silicone may leak.
Assemble all parts in reverse order.
Reconnect the battery, re-enter the erased code, perform a functional test.
[The original article is posted at: www.fordbook.ru]