Date Model Control unit address (e.g. 01) Diagnostic procedure
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test of engine temperature sensor - outlet from radiator (G83)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test of gas pedal position sensor 1; 2 (G79; G185)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test of filling and atmospheric pressure sensor (G31 G71 J623)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - fuel pressure - pressure sensor (G247)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - electromagnetic valve for the active carbon box (N80) variant 2
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - electromagnetic valve for the active carbon box (N80) variant 1
10.9.2025 Leon (KL) 2021 -> 01 - Engine Automatic test procedure
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - activation - fuel pump (G6)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Creation of readiness
10.9.2025 Leon (KL) 2021 -> 01 - Engine Evacuation of fuel tank
10.9.2025 Leon (KL) 2021 -> 01 - Engine Bleeding of fuel system
10.9.2025 Leon (KL) 2021 -> 01 - Engine Injector - zeroing learning values
10.9.2025 Leon (KL) 2021 -> 01 - Engine Creation of readiness
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test of gas pedal position sensor 1; 2 (G79; G185)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - engine control unit (J623) - power supply
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - throttle actuator
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - injector 1-4 (N30;N31;N32;N33)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - fuel pump: control unit (J538)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - throttle valve: control unit (J338)
10.9.2025 Leon (KL) 2021 -> 01 - Engine Test - voltage: terminal 30 (J317)