Co oznacza kod błędu ECM-0238?

Diagnostyka i definicja kodu błędu dla ECM-0238 (Volvo C30 (2007–2013), Volvo C30 (2007–2013), Volvo C70 (2006–2013)). Zamów naprawę w OBD Tuning.

VOLVO

ECM-0238 - Boost pressure sensor (MAP). Signal too high

Układ

Sterownik silnika (ECM)

Modele Volvo, których dotyczy ten kod błędu

Dotyczy następujących modeli:

4 modele

C30 (2007–2013), C70 (2006–2013), S40 (2004–2013), V50 (2004–2013)

Pokaż modele wg rocznika i silnika (10)

Co oznacza ten kod błędu?

The control module watches the boost sensor reading and checks it against the atmospheric pressure it measures itself. The fault is logged when the signal is too high, or when boost and atmospheric pressure differ clearly with the ignition on. Causes are poor contact, a break in the signal or supply wire, a short to voltage, or a damaged sensor.

Możliwe przyczyny

Contact resistance, oxidation or loose connection in the connections
Open circuit in the signal wire
Open circuit in the power supply
Signal wire shorted to supply voltage
Damaged boost pressure sensor

Co możesz zrobić

1Read the fault code, clear it and road test to see whether it returns
2Check the boost pressure sensor connector: is it fully engaged and free from moisture and oxidation?
3Follow the signal and supply wires from the sensor and look for breaks and chafing
4With the ignition on and the connector unplugged, use a multimeter to see whether the signal wire picks up voltage. If it does, it is shorted to plus
5If the fault returns after a road test, have a workshop decide whether the boost pressure sensor should be replaced

Objawy, które możesz zauważyć1

Check engine light comes on or behaves abnormally

Na co może wpływać usterka1

A calculated boost pressure is used instead

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