Date Model Control unit address (e.g. 01) Diagnostic procedure
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Test of DPF differential pressure sensor 1 (G505) CUUx
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Test of exhaust gases temperature sensor 2;3;4 (G448; G495;G648) CUUx
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Test of exhaust gases temperature sensor 2;3;4 (G448; G495;G648) CUUx
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Test of fuel temperature sensor (G81)
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Test of fuel temperature sensor (G81)
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Test - Intake air mass sensor - test drive
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Test - Intake air mass sensor - test drive
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Adaptation: oil presure for engine run-in
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Adaptation: oil presure for engine run-in
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Basic settings - Low-pressure exhaust gas return valve
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Basic settings - Low-pressure exhaust gas return valve
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Basic settings - exhaust gas return valve 1 (GX5)
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Basic settings - exhaust gas return valve 1 (GX5)
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Zeroing learning values - Intake air mass sensor
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Zeroing learning values - Intake air mass sensor
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Zeroing learning values DPF - If replaced: engine control unit
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Zeroing learning values DPF - If replaced: engine control unit
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Adaptation: soot clogging DPF - If replaced: DPF
21.1.2025 Fabia 3 (NJ) A04 (PQ26) 2015 -> 01 - Engine Adaptation: soot clogging DPF - If replaced: DPF
21.1.2025 Rapid (NH) A05+ (PQ25) 2013 - 2019 01 - Engine Test of the condition of the diesel particulate filter - oil ash CLHx;CNHx