Co oznacza kod błędu ECM-P208021?

Diagnostyka i definicja kodu błędu dla ECM-P208021 (Volvo S60 (2011–), Volvo S80 (2007–), Volvo V40 (2013–)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-P208021 - Exhaust Gas Temperature Sensor Circuit Range/Performance Bank 1 Sensor 1. General Signal Failures. Signal too low

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

8 modeli

S60 (2011–), S80 (2007–), V40 (2013–), V40 Cross Country (2013–), V60 (2011–), V70 (2008–), XC60 (2009–), XC70 (2008–)

Pokaż modele wg rocznika i silnika (8)

Co oznacza ten kod błędu?

The code is set when the reading from the temperature sensor ahead of the catalytic converter departs from the calculated value. The engine control module monitors this, and it can result from a loose or oxidised connection, a short to ground in the signal wire or a damaged sensor. An incorrect reading from the mass air flow meter can also trigger it.

Możliwe przyczyny

Loose connection or oxidation in the connections
Short circuit to ground in the signal wire
Damaged exhaust temperature sensor before the catalytic converter
The mass air flow meter gives an incorrect reading, for example because of charge air leakage

Co możesz zrobić

1If you have a diagnostic tool: start the engine and read the sensor value in live data, and check that it is stable while the engine runs
2Check that the connectors to the sensor are secure and free from oxidation
3Use a multimeter to check that the signal wire has no short circuit to ground
4Check that the charge air system does not leak, since a leak can give the mass air flow meter a wrong reading
5If the fault remains, have a workshop with diagnostic equipment check the sensor

Objawy, które możesz zauważyć1

Check engine warning lamp lights or behaves abnormally

Na co może wpływać usterka1

A calculated value is used instead of the sensor signal

Ogólne wskazówki dla właścicieli. Diagnostyka na samochodzie może wskazać inną przyczynę.