18310 — P1902 Radiator fan operation control unit after off J138 Motor: Open / Short to Ground; Radiator fan run-on control unit-J138 Open circuit / short circuit to ground

Manufacturer reference family

Audi / Jetta / MAN / Seat / Skoda / Volkswagen: 18310

P1902 Radiator fan operation control unit after off J138 Motor: Open / Short to Ground; Steuergerät für Kühlerlüfternachlauf-J138 Unterbrechung/Kurzschluss nach Masse

P1902 Radiator fan operation control unit after off J138 Motor: Open / Short to Ground; Radiator fan run-on control unit-J138 Open circuit / short circuit to ground

P1902 Блок управления работы вентиляторов радиатора после выкл. двигателя-J138: обрыв цепи/короткое замыкание на массу; Блок управления работы вентиляторов радиатора после выкл. двигателя-J138: обрыв цепи/короткое замыкание на массу

Reference namespace: vag
Source revision: legacy-oem-dtc-r2-20260924

Reference family assigned by the production catalog. An entry in this family is not proof of a fault or ECU support on every listed vehicle.

Related catalog brands: Skoda, Volkswagen, Audi, Seat, MAN, Jetta.

56 profiles assigned this reference family

Amarok gen.1 (2010-2022) 2.0 TDIVolkswagen · 2010–2022
Amarok gen.1 (2010-2022) 3.0 TDIVolkswagen · 2010–2022
Caravelle 2.5 TDIVolkswagen
Crafter NF 2016-2019, TGE 1 2.0 TDIMAN · 2016–2019
EV: e-Golf (24 kWh) 2014-2016Volkswagen · 2014–2016
EV: e-Golf (36 kWh) 2017-2021Volkswagen · 2017–2021
EV: eTron 55Audi
EV: e-UP! gen.2, Citigo E, Mii EV (32kWh)Seat · 2019–onward
EV: e-Up!, CitiGo E, Mii EV gen.1Jetta
MLB: 2.0 TSI/TFSI: CAEB, CDNC var.1Audi
MLB: 2.0 TSI/TFSI: CAEB, CDNC var.2Audi
MLB: 2.0 TSI/TFSI: CPMAAudi
MLB: A5/S5 B8/8T (2007-2013) + ATAudi · 2007–2013
MLB: Diesel DPF var.16 [EA896]Audi
MLB: Diesel DPF var.6 [EA897]Audi · 2008–2016
MLB: Diesel var.14 EA189 2.0 TDI (UDS ECM ONLY)Audi
MLB: EA824 4.0 TFSI (CWUB, CWUC)Audi · 2015–2018
MLB-EVO: Diesel DPF var.12 [EA897 Evo 3.0TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi
MLB-EVO: Diesel DPF var.13 [EA288 Evo 2.0TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi
MLB-EVO: Diesel DPF var.15 [EA897 Evo3 3.0TDI]Audi
MLB-EVO: Diesel DPF var.4 [EA288 2.0 TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN)Audi
MLB-EVO: Diesel DPF var.5 [EA897 3.0TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi
MLB-EVO: Diesel DPF var.8 [EA897 Evo2 3.0TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi
MLB-EVO: Diesel DPF var.9 [EA897 gen.2 3.0TDI] (Audi: A4 8W, A5 8W, Q5 80A, Q7 4M, A8 4N, A7 4K8, A6 4K, Q8 4MN, VW Touareg CR)Audi

32 more related profiles are listed in the vehicle directory.

What should I check before using this definition?

Keep the full code, module, status and freeze-frame data. Confirm the vehicle’s make, model, year and current manufacturer service information before choosing a repair. This entry does not identify a failed part by itself.

Organize a scan report or recording

Source and applicability

OBD Lens production library legacy-owner-2026-10-09-v81. This is a scoped technical reference, not a scan of your car. A catalog relationship does not certify that every ECU, year or engine returns the same signal or code definition.

Read the reference method