U0244: Kommunikationsverlust mit dem Steuergerät A des Trittbretts
Was zu tun ist
The car drives normally, but the powered step will have stopped working. Which position it is stuck in decides how much this matters.
If it is stuck retracted, the main risk is somebody stepping out expecting a step that is not there. Warn passengers — particularly children, older passengers and anyone with limited mobility, who are exactly the people this feature is for.
If it is stuck extended, take more care. The board adds several inches to the width of the vehicle on that side, so it will catch kerbs, bollards, car park pillars and other cars. It is also something to trip over when parked. Drive accordingly and be careful in tight spaces.
The cause is usually corrosion or damage rather than electronics. This module hangs under the sill, lower than anything else on the vehicle, in the direct path of road spray, salt and stones. Ask for the mechanism and its wiring to be cleaned and inspected — and if it has seized before, ask what is being done to stop it happening again, because a replacement in the same conditions will go the same way.
Was dieser Code bedeutet
The first running board control module has stopped being heard from. See U0200 for the block's framing.
A powered running board is a step that extends when a door opens and retracts when it closes, fitted to tall vehicles — pickups, large SUVs, some vans — where the sill is too high to climb into comfortably. It matters more than a convenience feature because the people who need it most are the least able to manage without it, and because of how it fails.
The two failure positions are not equally serious, and this is the practical content of the page.
Stuck retracted is an inconvenience and an access problem: a high step, awkward for children, shorter adults and anybody with limited mobility. Worth knowing before somebody attempts to climb in expecting a step that is not there — which is a genuine fall risk for exactly the people the feature exists for.
Stuck extended is the one with consequences beyond access. A board left out adds several inches to the vehicle's width on that side. It will strike kerbs, bollards, parking structure pillars and adjacent cars, and on a vehicle already close to lane width that is a real hazard rather than a theoretical one. It also becomes a trip hazard when the vehicle is parked.
So the first question is which position it is stuck in, and the advice follows from the answer.
Physically this is the harshest-mounted module in the whole block. It hangs under the sill, below the lowest point of the body, directly in the path of everything the wheels throw up — water, road salt, grit and stones — and the mechanism itself is a moving joint down there. Corrosion and mechanical damage are the expected findings, and a module or motor replaced without addressing why the last one died will follow it.
Wahrscheinliche Ursachen
Hier anfangen
- Wasser in den Steuergerätestecker eingedrungen · mittel
- Korrodierter oder loser Stecker · einfach
- Mechanische Beschädigung durch Steinschlag · mittel
- Kabelbaum beschädigt · mittel
Seltener
Symptome
Beteiligte Bauteile
Information, keine Handlungsanweisung
CarGeek ist ein Nachschlagewerk, kein Werkstatthandbuch. Die Seiten entstehen aus öffentlichen Quellen und aus dem, was andere festgestellt haben, nie aus den Serviceunterlagen des Herstellers; für Ihr konkretes Fahrzeug können sie daher falsch oder unvollständig sein. Ein Teil des Beschriebenen birgt echte Gefahren: Hochspannung, Kraftstoff unter Druck, gespeicherte Energie sowie heiße oder bewegte Teile.
Lassen Sie alles, wonach Sie handeln wollen, von einer fachlich geschulten Person anhand der herstellereigenen Vorgehensweise für Ihr Fahrzeug prüfen. Nichts hiervon ersetzt diese Vorgehensweise.
Erfahrungen der Community
Schreiben Sie den ersten Erfahrungsbericht dazu
Dazu wurde noch nichts veröffentlicht. Was immer Sie gefunden haben, ist es wert, aufgeschrieben zu werden — selbst eine Sackgasse erspart jemandem denselben Nachmittag.
Was einen Bericht lesenswert macht:
- Das Fahrzeug — Marke, Modell, Baujahr und Motor. Derselbe Fehler verhält sich auf jedem anders.
- Was Sie gemessen haben, nicht nur, was Sie getauscht haben.
- Was es tatsächlich behoben hat — oder dass nichts es behoben hat, was ebenso nützlich ist.
Anmelden oder ein Konto anlegen und eintragen, was Sie gefunden haben — zu U0244.