VOLVO
ECM-21FD - Long-term fuel trim, bank 2. Signal too low
System
Motorsteuergerät (ECM)
Volvo-Modelle, für die dieser Fehlercode gilt
Gilt für folgende Modelle:
2 ModelleS80 (1999–2006), XC90 (2003–)
Modelle nach Baujahr und Motor anzeigen (2)
Was bedeutet der Fehlercode?
A collective code for fuel adaptation faults on bank 2. It is set when any underlying adaptation code is stored in two consecutive driving cycles, and it always comes together with one or more of them. Although the code is named for a signal that is too low, the underlying cause is what counts.
Mögliche Ursachen
- Consequential fault from an underlying fault code for adaptive lambda regulation on bank 2
Was Sie tun können
- 1Start troubleshooting with the underlying bank 2 codes, since this code has no fault-tracing of its own
- 2Clear the code only after the root fault is fixed, then road test the car
- 3Have a diagnostic tool? Read the codes and note which bank 2 codes are stored next to this one
Symptome, die Sie bemerken können1
- The check engine warning lamp comes on or behaves abnormally
Allgemeine Hinweise für Fahrzeughalter. Die Diagnose am Fahrzeug kann eine andere Ursache zeigen.