VOLVO
ECM-288A - Front heated oxygen sensor (HO2S), bank 1. Signal missing
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleS40 (2004–2013), V50 (2004–2013)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
Although the code is named signal missing, it is set when the front oxygen sensor on bank 1 reacts too slowly when the fuel and air mixture changes. The control module monitors the aging of the sensor, and the cause may be a wiring fault such as a short between the calibration and pump current cables, or an open circuit.
Możliwe przyczyny
- Calibration and pump current cables shorted to each other
- Open circuit in the signal cable (-)
- Open circuit in the calibration current cable
- Damaged front oxygen sensor
Co możesz zrobić
- 1Do not use rust solvent or grease on the sensor connector. Check that the connector is secure and free from contact resistance and oxidation
- 2With the car switched off, use a multimeter to check the wires one at a time for an open circuit
- 3Use a multimeter to check that the calibration and pump current wires are not shorted to each other
- 4If the connector and wires are in order but the fault remains, have a workshop fit a new oxygen sensor
Objawy, które możesz zauważyć1
- Malfunction indicator lamp (MIL) lit
Na co może wpływać usterka1
- Catalytic converter diagnostic is switched off
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.