VOLVO
ECM-P008400 - Exhaust valve control circuit (bank 2). General fault information. Type of fault not specified.
Układ
Sterownik silnika (ECM)
Modele Volvo, których dotyczy ten kod błędu
Dotyczy następujących modeli:
2 modeleS80 (2007–), XC90 (2003–)
Pokaż modele wg rocznika i silnika (2)
Co oznacza ten kod błędu?
The engine control module (ECM) adjusts the exhaust camshaft position on bank 2, the cylinder row furthest to the rear, with a changeover valve. The fault code is set when the control signal to the valve is missing. This can be an open circuit in the signal or supply wire, or a damaged valve.
Możliwe przyczyny
- Open circuit in the signal wire to the changeover valve
- Open circuit in the voltage supply wire to the changeover valve
- Damaged exhaust camshaft changeover valve
Co możesz zrobić
- 1Check the fuse for the circuit. If it has blown, use a multimeter to check that the wire is not shorted to ground
- 2Measure the valve resistance if the connector and wiring are in order, or have a workshop do it
- 3Use a multimeter to check that the signal and supply wires to the valve have no open circuit
- 4Check the exhaust valve connector for loose connections and corrosion
- 5Have a workshop with diagnostic equipment check the control module if the fault remains
Objawy, które możesz zauważyć4
- Check engine lamp (MIL) lights up
- Uneven idle
- Poor performance
- The engine can stall while driving
Na co może wpływać usterka1
- Exhaust camshaft control is switched off
Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.