Selective Catalytic Reduction - Diesel. F4 10A Selective Catalytic Reduction - Diesel. F5 3A Diesel particulate filter vaporizer - Diesel. Glow plug monitor - Diesel. F6 - Not New. F7 7.5A Automatic transmission control module ignition feed. F8 20A Cooling fan - Gasoline. F9 - Not New. F10 30A Power step and heated seats.