VOLVO
ECM-258D - Front heated oxygen sensor (HO2S), bank 2. Signal too low
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleS80 (1999–2006), XC90 (2003–)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The engine control module (ECM) detects that the signal wires to the oxygen sensor on bank 2 are shorted to ground, which shows up as a signal that is too low. The code is then set.
Możliwe przyczyny
- Signal wires shorted to ground
- Damaged oxygen sensor on bank 2
Co możesz zrobić
- 1Clear the code, road test the car and then check whether it comes back
- 2Look at the connector at the lambda sensor: it should be seated firmly and free from moisture and oxide. Avoid rust solvent spray and grease
- 3With the control module disconnected, use a multimeter to check that the signal wires have no contact with ground (chassis)
- 4Look for chafed and pinched spots on the wires, especially where they may have rubbed against an edge
- 5If the wires are intact but the fault remains, have a workshop check or replace the lambda sensor
Objawy, które możesz zauważyć1
- Malfunction indicator lamp (MIL) on
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.